diff --git a/docs/rules/exports-style.md b/docs/rules/exports-style.md
index c3ef0a56..682fd36c 100644
--- a/docs/rules/exports-style.md
+++ b/docs/rules/exports-style.md
@@ -23,7 +23,7 @@ If you use `exports`, this rule disallows `module.exports`.
 
 You can select it by an option.
 
-## Options
+### Options
 
 This rule has a string option.
 
@@ -43,7 +43,7 @@ This rule has a string option.
 - `"exports"` requires `exports` and disallows `module.exports`.
 - `allowBatchAssign` (default is `false`) allows `module.exports = exports = obj` if this is `true`.
 
-### module.exports
+#### module.exports
 
 Examples of :-1: **incorrect** code for the `"module.exports"` option:
 
@@ -67,7 +67,7 @@ module.exports = {
 module.exports.baz = 3
 ```
 
-### exports
+#### exports
 
 Examples of :-1: **incorrect** code for the `"exports"` option:
 
@@ -91,7 +91,7 @@ exports.foo = 1
 exports.bar = 2
 ```
 
-### allowBatchAssign
+#### allowBatchAssign
 
 Examples of :+1: **correct** code for the `"exports"` and `{"allowBatchAssign": true}` option:
 
diff --git a/docs/rules/file-extension-in-import.md b/docs/rules/file-extension-in-import.md
index cf17569f..86185420 100644
--- a/docs/rules/file-extension-in-import.md
+++ b/docs/rules/file-extension-in-import.md
@@ -18,7 +18,7 @@ Also, we can import a variety kind of files with bundlers such as Webpack. In th
 
 This rule enforces the style of file extensions in `import`/`export` declarations.
 
-## Options
+### Options
 
 This rule has a string option and an object option.
 
@@ -40,7 +40,7 @@ This rule has a string option and an object option.
 - `tryExtensions` is the file extensions to resolve import paths. Default is `[".js", ".json", ".node"]`.
 - `.xxx` is the overriding setting for specific file extensions. You can use arbitrary property names which start with `.`.
 
-### always
+#### always
 
 Examples of :-1: **incorrect** code for the `"always"` option:
 
@@ -59,7 +59,7 @@ import eslint from "eslint"
 import foo from "./path/to/a/file.js"
 ```
 
-### never
+#### never
 
 Examples of :-1: **incorrect** code for the `"never"` option:
 
@@ -78,7 +78,7 @@ import eslint from "eslint"
 import foo from "./path/to/a/file"
 ```
 
-### .xxx
+#### .xxx
 
 Examples of :+1: **correct** code for the `["always", { ".js": "never" }]` option:
 
@@ -91,7 +91,7 @@ import styles from "./styles.css"
 import logo from "./logo.png"
 ```
 
-## Shared Settings
+### Shared Settings
 
 The following options can be set by [shared settings](http://eslint.org/docs/user-guide/configuring.html#adding-shared-settings).
 Several rules have the same option, but we can set this option at once.
diff --git a/docs/rules/no-deprecated-api.md b/docs/rules/no-deprecated-api.md
index 73db41ec..dc1933df 100644
--- a/docs/rules/no-deprecated-api.md
+++ b/docs/rules/no-deprecated-api.md
@@ -144,7 +144,7 @@ This rule reports the following deprecated API.
 > For example, `require("punycode")` still imports the deprecated core module even if you executed `npm install punycode`.
 > Use `require("punycode/")` to import userland modules rather than core modules.
 
-## Options
+### Options
 
 This rule has 2 options.
 
@@ -159,7 +159,7 @@ This rule has 2 options.
 }
 ```
 
-### ignoreModuleItems
+#### ignoreModuleItems
 
 This is the array of module names and module's member names.
 Default is an empty array.
@@ -262,7 +262,7 @@ const buffer = require("buffer")
 const data = new buffer.Buffer(10) // OK since it's in ignoreModuleItems.
 ```
 
-### ignoreGlobalItems
+#### ignoreGlobalItems
 
 This is the array of global variable names and global variable's member names.
 Default is an empty array.
@@ -293,7 +293,7 @@ Examples of :+1: **correct** code for the `{"ignoreGlobalItems": ["new Buffer()"
 const data = new Buffer(10) // OK since it's in ignoreGlobalItems.
 ```
 
-## Known Limitations
+## ⚠️ Known Limitations
 
 This rule cannot report the following cases:
 
diff --git a/docs/rules/no-extraneous-import.md b/docs/rules/no-extraneous-import.md
index 81c68730..0de56f42 100644
--- a/docs/rules/no-extraneous-import.md
+++ b/docs/rules/no-extraneous-import.md
@@ -8,7 +8,7 @@ This rule disallows `import` declarations of extraneous modules.
 
 This rule warns `import` declarations of extraneous modules.
 
-## Options
+### Options
 
 ```json
 {
@@ -22,7 +22,7 @@ This rule warns `import` declarations of extraneous modules.
 }
 ```
 
-### allowModules
+#### allowModules
 
 Some platforms have additional embedded modules.
 For example, Electron has `electron` module.
@@ -40,21 +40,21 @@ This option is an array of strings as module names.
 }
 ```
 
-### resolvePaths
+#### resolvePaths
 
 Adds additional paths to try for when resolving imports.
 If a path is relative, it will be resolved from CWD.
 
 Default is `[]`
 
-### tryExtensions
+#### tryExtensions
 
 When an import path does not exist, this rule checks whether or not any of `path.js`, `path.json`, and `path.node` exists.
 `tryExtensions` option is the extension list this rule uses at the time.
 
 Default is `[".js", ".json", ".node"]`.
 
-## Shared Settings
+### Shared Settings
 
 The following options can be set by [shared settings](http://eslint.org/docs/user-guide/configuring.html#adding-shared-settings).
 Several rules have the same option, but we can set this option at once.
diff --git a/docs/rules/no-extraneous-require.md b/docs/rules/no-extraneous-require.md
index 45ae8531..ad4d6413 100644
--- a/docs/rules/no-extraneous-require.md
+++ b/docs/rules/no-extraneous-require.md
@@ -10,7 +10,7 @@ This rule disallows `require()` of extraneous modules.
 
 This rule warns `require()` of extraneous modules.
 
-## Options
+### Options
 
 ```json
 {
@@ -24,7 +24,7 @@ This rule warns `require()` of extraneous modules.
 }
 ```
 
-### allowModules
+#### allowModules
 
 Some platforms have additional embedded modules.
 For example, Electron has `electron` module.
@@ -42,21 +42,21 @@ This option is an array of strings as module names.
 }
 ```
 
-### resolvePaths
+#### resolvePaths
 
 Adds additional paths to try for when resolving imports.
 If a path is relative, it will be resolved from CWD.
 
 Default is `[]`
 
-### tryExtensions
+#### tryExtensions
 
 When an import path does not exist, this rule checks whether or not any of `path.js`, `path.json`, and `path.node` exists.
 `tryExtensions` option is the extension list this rule uses at the time.
 
 Default is `[".js", ".json", ".node"]`.
 
-## Shared Settings
+### Shared Settings
 
 The following options can be set by [shared settings](http://eslint.org/docs/user-guide/configuring.html#adding-shared-settings).
 Several rules have the same option, but we can set this option at once.
diff --git a/docs/rules/no-hide-core-modules.md b/docs/rules/no-hide-core-modules.md
index c52cc023..53ac4c3d 100644
--- a/docs/rules/no-hide-core-modules.md
+++ b/docs/rules/no-hide-core-modules.md
@@ -32,7 +32,7 @@ const util = require("util")  // OK if this is the core module 'util' surely.
 const path = require("path")  // OK if this is the core module 'path' surely.
 ```
 
-## Options
+### Options
 
 ```json
 {
@@ -44,19 +44,19 @@ const path = require("path")  // OK if this is the core module 'path' surely.
 }
 ```
 
-### allow
+#### allow
 
 If you are sure that your module depends on the third-party module which has the same name as a core module, you can allow it by `allow` option.
 E.g. `{"allow": ["util", "path"]}`.
 Default is en empty array.
 
-### ignoreDirectDependencies
+#### ignoreDirectDependencies
 
 If `ignoreDirectDependencies: true`, if the third-party module which has the same name as a core module exists in your `package.json`, this rule ignores it.
 
 This option would allow all explicit dependencies which are hiding core modules.
 
-### ignoreIndirectDependencies
+#### ignoreIndirectDependencies
 
 If `ignoreIndirectDependencies: true`, if the third-party module which has the same name as a core module does not exist in your `package.json`, this rule ignores it.
 
diff --git a/docs/rules/no-missing-import.md b/docs/rules/no-missing-import.md
index 303c2556..d3a2ad8c 100644
--- a/docs/rules/no-missing-import.md
+++ b/docs/rules/no-missing-import.md
@@ -28,7 +28,7 @@ import existingFile from "./existing-file";
 import existingModule from "existing-module";
 ```
 
-## Options
+### Options
 
 ```json
 {
@@ -42,7 +42,7 @@ import existingModule from "existing-module";
 }
 ```
 
-### allowModules
+#### allowModules
 
 Some platforms have additional embedded modules.
 For example, Electron has `electron` module.
@@ -60,21 +60,21 @@ This option is an array of strings as module names.
 }
 ```
 
-### resolvePaths
+#### resolvePaths
 
 Adds additional paths to try for when resolving imports.
 If a path is relative, it will be resolved from CWD.
 
 Default is `[]`
 
-### tryExtensions
+#### tryExtensions
 
 When an import path does not exist, this rule checks whether or not any of `path.js`, `path.json`, and `path.node` exists.
 `tryExtensions` option is the extension list this rule uses at the time.
 
 Default is `[".js", ".json", ".node"]`.
 
-## Shared Settings
+### Shared Settings
 
 The following options can be set by [shared settings](http://eslint.org/docs/user-guide/configuring.html#adding-shared-settings).
 Several rules have the same option, but we can set this option at once.
diff --git a/docs/rules/no-missing-require.md b/docs/rules/no-missing-require.md
index 31ca965d..e0d3d86b 100644
--- a/docs/rules/no-missing-require.md
+++ b/docs/rules/no-missing-require.md
@@ -35,7 +35,7 @@ var existingModule = require("existing-module");
 var foo = require(FOO_NAME);
 ```
 
-## Options
+### Options
 
 ```json
 {
@@ -49,7 +49,7 @@ var foo = require(FOO_NAME);
 }
 ```
 
-### allowModules
+#### allowModules
 
 Some platforms have additional embedded modules.
 For example, Electron has `electron` module.
@@ -67,21 +67,21 @@ This option is an array of strings as module names.
 }
 ```
 
-### resolvePaths
+#### resolvePaths
 
 Adds additional paths to try for when resolving a require.
 If a path is relative, it will be resolved from CWD.
 
 Default is `[]`
 
-### tryExtensions
+#### tryExtensions
 
 When an import path does not exist, this rule checks whether or not any of `path.js`, `path.json`, and `path.node` exists.
 `tryExtensions` option is the extension list this rule uses at the time.
 
 Default is `[".js", ".json", ".node"]`.
 
-## Shared Settings
+### Shared Settings
 
 The following options can be set by [shared settings](http://eslint.org/docs/user-guide/configuring.html#adding-shared-settings).
 Several rules have the same option, but we can set this option at once.
diff --git a/docs/rules/no-unpublished-bin.md b/docs/rules/no-unpublished-bin.md
index ae2f582d..d121d608 100644
--- a/docs/rules/no-unpublished-bin.md
+++ b/docs/rules/no-unpublished-bin.md
@@ -21,7 +21,7 @@ If `npm` ignores the files in `bin` field, this rule warns the files.
 - If `files` field does not includes the files in `bin` field.
 - If `.npmignore` file includes the files in `bin` field.
 
-## Options
+### Options
 
 ```json
 {
@@ -33,7 +33,7 @@ If `npm` ignores the files in `bin` field, this rule warns the files.
 }
 ```
 
-### convertPath
+#### convertPath
 
 If we use transpilers (e.g. Babel), perhaps the file path to a source code is never published.
 `convertPath` option tells to the rule, it needs to convert file paths.
@@ -87,7 +87,7 @@ In this style, this option has the following shape as the same expression as abo
 In addition, we can specify glob patterns to exclude files.
 
 
-## Shared Settings
+### Shared Settings
 
 The following options can be set by [shared settings](http://eslint.org/docs/user-guide/configuring.html#adding-shared-settings).
 Several rules have the same option, but we can set this option at once.
diff --git a/docs/rules/no-unpublished-import.md b/docs/rules/no-unpublished-import.md
index 44cd8064..2c80cb81 100644
--- a/docs/rules/no-unpublished-import.md
+++ b/docs/rules/no-unpublished-import.md
@@ -17,7 +17,7 @@ Then this rule warns `import` declarations in \*published\* files if the `import
 > This intends to prevent "Module Not Found" error after `npm publish`.<br>
 > :bulb: If you want to import `devDependencies`, please write `.npmignore` or `"files"` field of `package.json`.
 
-## Options
+### Options
 
 ```json
 {
@@ -31,7 +31,7 @@ Then this rule warns `import` declarations in \*published\* files if the `import
 }
 ```
 
-### allowModules
+#### allowModules
 
 Some platforms have additional embedded modules.
 For example, Electron has `electron` module.
@@ -49,7 +49,7 @@ This option is an array of strings as module names.
 }
 ```
 
-### convertPath
+#### convertPath
 
 If we use transpilers (e.g. Babel), perhaps the file path to a source code is never published.
 `convertPath` option tells to the rule, it needs to convert file paths.
@@ -103,14 +103,14 @@ For example:
 In this style, this option has the following shape as the same expression as above: `{include: [<targetFiles>], replace: [<fromRegExp>, <toString>]}`.
 In addition, we can specify glob patterns to exclude files.
 
-### tryExtensions
+#### tryExtensions
 
 When an import path does not exist, this rule checks whether or not any of `path.js`, `path.json`, and `path.node` exists.
 `tryExtensions` option is the extension list this rule uses at the time.
 
 Default is `[".js", ".json", ".node"]`.
 
-## Shared Settings
+### Shared Settings
 
 The following options can be set by [shared settings](http://eslint.org/docs/user-guide/configuring.html#adding-shared-settings).
 Several rules have the same option, but we can set this option at once.
diff --git a/docs/rules/no-unpublished-require.md b/docs/rules/no-unpublished-require.md
index 99906455..e7a6a438 100644
--- a/docs/rules/no-unpublished-require.md
+++ b/docs/rules/no-unpublished-require.md
@@ -18,7 +18,7 @@ Then this rule warns `require()` expressions in \*published\* files if the `requ
 > This intends to prevent "Module Not Found" error after `npm publish`.<br>
 > :bulb: If you want to import `devDependencies`, please write `.npmignore` or `"files"` field of `package.json`.
 
-## Options
+### Options
 
 ```json
 {
@@ -32,7 +32,7 @@ Then this rule warns `require()` expressions in \*published\* files if the `requ
 }
 ```
 
-### allowModules
+#### allowModules
 
 Some platforms have additional embedded modules.
 For example, Electron has `electron` module.
@@ -50,7 +50,7 @@ This option is an array of strings as module names.
 }
 ```
 
-### convertPath
+#### convertPath
 
 If we use transpilers (e.g. Babel), perhaps the file path to a source code is never published.
 `convertPath` option tells to the rule, it needs to convert file paths.
@@ -104,14 +104,14 @@ For example:
 In this style, this option has the following shape as the same expression as above: `{include: [<targetFiles>], replace: [<fromRegExp>, <toString>]}`.
 In addition, we can specify glob patterns to exclude files.
 
-### tryExtensions
+#### tryExtensions
 
 When an import path does not exist, this rule checks whether or not any of `path.js`, `path.json`, and `path.node` exists.
 `tryExtensions` option is the extension list this rule uses at the time.
 
 Default is `[".js", ".json", ".node"]`.
 
-## Shared Settings
+### Shared Settings
 
 The following options can be set by [shared settings](http://eslint.org/docs/user-guide/configuring.html#adding-shared-settings).
 Several rules have the same option, but we can set this option at once.
diff --git a/docs/rules/no-unsupported-features.md b/docs/rules/no-unsupported-features.md
index 4aa86cab..87df20f3 100644
--- a/docs/rules/no-unsupported-features.md
+++ b/docs/rules/no-unsupported-features.md
@@ -108,7 +108,7 @@ var p = new Promise((resolve, reject) => {
 });
 ```
 
-## Options
+### Options
 
 ```json
 {
@@ -119,7 +119,7 @@ var p = new Promise((resolve, reject) => {
 }
 ```
 
-### version
+#### version
 
 As mentioned above, this rule reads the [engines] field of `package.json` to detect Node.js version.
 Also, you can overwrite the version by `version` option.
@@ -138,7 +138,7 @@ The `version` option accepts the following version number:
 - `9.0` ... Illegal escape sequences in taggled templates, RegExp 's' flags, RegExp lookbehind assertions, `SharedArrayBuffer`, and `Atomics`.
 - `10.0` ... RegExp named capture groups, RegExp Unicode property escapes, Async generators, and `for-await-of` loops.
 
-### ignores
+#### ignores
 
 If you are using transpilers, maybe you want to ignore the warnings about some features.
 You can use this `ignores` option to ignore the given features.
@@ -292,12 +292,12 @@ function foo(a = 1) {
 }
 ```
 
-## Known Limitations
+## ⚠️ Known Limitations
 
 This rule cannot report non-static things.
 E.g., a use of instance methods.
 
-## Further Reading
+## 📚 Further Reading
 
 - http://node.green/
 
diff --git a/docs/rules/process-exit-as-throw.md b/docs/rules/process-exit-as-throw.md
index e368e4a0..595b337b 100644
--- a/docs/rules/process-exit-as-throw.md
+++ b/docs/rules/process-exit-as-throw.md
@@ -21,7 +21,7 @@ If you turn this rule on, ESLint comes to address `process.exit()` as throw in c
 
 This rule itself never warn code.
 
-## Related Rules
+## 📚 Related Rules
 
 - [consistent-return]
 - [no-fallthrough]
diff --git a/docs/rules/shebang.md b/docs/rules/shebang.md
index 6c460787..1c0b9d30 100644
--- a/docs/rules/shebang.md
+++ b/docs/rules/shebang.md
@@ -57,7 +57,7 @@ The following patterns are not considered problems for other files:
 console.log("hello");
 ```
 
-## Options
+### Options
 
 ```json
 {
@@ -65,7 +65,7 @@ console.log("hello");
 }
 ```
 
-### convertPath
+#### convertPath
 
 If we use transpilers (e.g. Babel), perhaps the file path to a source code is never handled as a bin file.
 `convertPath` option tells to the rule, it needs to convert file paths.
@@ -118,7 +118,7 @@ For example:
 In this style, this option has the following shape as the same expression as above: `{include: [<targetFiles>], replace: [<fromRegExp>, <toString>]}`.
 In addition, we can specify glob patterns to exclude files.
 
-## Shared Settings
+### Shared Settings
 
 The following options can be set by [shared settings](http://eslint.org/docs/user-guide/configuring.html#adding-shared-settings).
 Several rules have the same option, but we can set this option at once.