Docs: fix and add more examples for new-cap rule (fixes #12874) (#14725)

* Docs: fix and add more examples for `new-cap` rule

* Docs: update

* Docs: update

* Docs: update

* Docs: Update docs/rules/new-cap.md

Co-authored-by: Milos Djermanovic <milos.djermanovic@gmail.com>

Co-authored-by: Milos Djermanovic <milos.djermanovic@gmail.com>

docs/rules/new-cap.md

@@ -112,15 +112,24 @@ var emitter = new events();
 
 ### newIsCapExceptionPattern
 
-Examples of additional **correct** code for this rule with the `{ "newIsCapExceptionPattern": "^person\.." }` option:
+Examples of additional **correct** code for this rule with the `{ "newIsCapExceptionPattern": "^person\\.." }` option:
 
 ```js
-/*eslint new-cap: ["error", { "newIsCapExceptionPattern": "^person\.." }]*/
+/*eslint new-cap: ["error", { "newIsCapExceptionPattern": "^person\\.." }]*/
 
 var friend = new person.acquaintance();
+
 var bestFriend = new person.friend();
 ```
 
+Examples of additional **correct** code for this rule with the `{ "newIsCapExceptionPattern": "\\.bar$" }` option:
+
+```js
+/*eslint new-cap: ["error", { "newIsCapExceptionPattern": "\\.bar$" }]*/
+
+var friend = new person.bar();
+```
+
 ### capIsNewExceptions
 
 Examples of additional **correct** code for this rule with the `{ "capIsNewExceptions": ["Person"] }` option:
@@ -135,15 +144,35 @@ function foo(arg) {
 
 ### capIsNewExceptionPattern
 
-Examples of additional **correct** code for this rule with the `{ "capIsNewExceptionPattern": "^Person\.." }` option:
+Examples of additional **correct** code for this rule with the `{ "capIsNewExceptionPattern": "^person\\.." }` option:
 
 ```js
-/*eslint new-cap: ["error", { "capIsNewExceptionPattern": "^Person\.." }]*/
+/*eslint new-cap: ["error", { "capIsNewExceptionPattern": "^person\\.." }]*/
 
 var friend = person.Acquaintance();
 var bestFriend = person.Friend();
 ```
 
+Examples of additional **correct** code for this rule with the `{ "capIsNewExceptionPattern": "\\.Bar$" }` option:
+
+```js
+/*eslint new-cap: ["error", { "capIsNewExceptionPattern": "\\.Bar$" }]*/
+
+foo.Bar();
+```
+
+Examples of additional **correct** code for this rule with the `{ "capIsNewExceptionPattern": "^Foo" }` option:
+
+```js
+/*eslint new-cap: ["error", { "capIsNewExceptionPattern": "^Foo" }]*/
+
+var x = Foo(42);
+
+var y = Foobar(42);
+
+var z = Foo.Bar(42);
+```
+
 ### properties
 
 Examples of **incorrect** code for this rule with the default `{ "properties": true }` option: