diff --git a/packages/website/docusaurus.config.js b/packages/website/docusaurus.config.js
index c7af4ddcf7b..5b2542b6ee8 100644
--- a/packages/website/docusaurus.config.js
+++ b/packages/website/docusaurus.config.js
@@ -42,7 +42,7 @@ const config = {
         path: '../eslint-plugin/docs/rules',
         sidebarPath: require.resolve('./sidebars/sidebar.rules.js'),
         routeBasePath: 'rules',
-        editUrl: `${githubUrl}/edit/master/docs/`,
+        editUrl: `${githubUrl}/edit/master/packages/website/`,
         remarkPlugins,
       },
     ],
@@ -53,7 +53,7 @@ const config = {
         path: '../../docs',
         routeBasePath: 'docs',
         sidebarPath: require.resolve('./sidebars/sidebar.base.js'),
-        editUrl: `${githubUrl}/edit/master/docs/`,
+        editUrl: `${githubUrl}/edit/master/packages/website/`,
         remarkPlugins,
       },
     ],
diff --git a/packages/website/src/prism/language/jsonc.js b/packages/website/src/prism/language/jsonc.js
new file mode 100644
index 00000000000..c42733fb7d6
--- /dev/null
+++ b/packages/website/src/prism/language/jsonc.js
@@ -0,0 +1,27 @@
+// https://www.json.org/json-en.html
+Prism.languages.cjson = {
+  property: {
+    pattern: /(^|[^\\])"(?:\\.|[^\\"\r\n])*"(?=\s*:)/,
+    lookbehind: true,
+    greedy: true,
+  },
+  string: {
+    pattern: /(^|[^\\])"(?:\\.|[^\\"\r\n])*"(?!\s*:)/,
+    lookbehind: true,
+    greedy: true,
+  },
+  comment: {
+    pattern: /\/\/.*|\/\*[\s\S]*?(?:\*\/|$)/,
+    greedy: true,
+  },
+  number: /-?\b\d+(?:\.\d+)?(?:e[+-]?\d+)?\b/i,
+  punctuation: /[{}[\],]/,
+  operator: /:/,
+  boolean: /\b(?:false|true)\b/,
+  null: {
+    pattern: /\bnull\b/,
+    alias: 'keyword',
+  },
+};
+
+Prism.languages.jsonc = Prism.languages.cjson;
diff --git a/packages/website/src/theme/prism-include-languages.js b/packages/website/src/theme/prism-include-languages.js
new file mode 100644
index 00000000000..aaf2d101e96
--- /dev/null
+++ b/packages/website/src/theme/prism-include-languages.js
@@ -0,0 +1,27 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+import ExecutionEnvironment from '@docusaurus/ExecutionEnvironment';
+import siteConfig from '@generated/docusaurus.config';
+
+const prismIncludeLanguages = PrismObject => {
+  if (ExecutionEnvironment.canUseDOM) {
+    const {
+      themeConfig: { prism = {} },
+    } = siteConfig;
+    const { additionalLanguages = [] } = prism;
+    window.Prism = PrismObject;
+
+    additionalLanguages.forEach(lang => {
+      require(`prismjs/components/prism-${lang}`); // eslint-disable-line
+    });
+
+    require(`../prism/language/jsonc`);
+    delete window.Prism;
+  }
+};
+
+export default prismIncludeLanguages;