Add documentation examples

[Xvezda]

No description provided.

[Copilot]

Pull Request Overview

This PR adds illustrative TypeScript examples for the useBaseTypeOfLiteral and preferUnionType options in two rule documentation files.

• Introduce examples showing base vs. literal type usage under useBaseTypeOfLiteral.
• Demonstrate union vs. separate @throws tags under preferUnionType.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
docs/rules/no-undocumented-throws.md	Added TS examples for useBaseTypeOfLiteral and preferUnionType.
docs/rules/check-throws-tag-type.md	Added TS examples for useBaseTypeOfLiteral and preferUnionType.

[Copilot]

[nitpick] These examples are identical to those in check-throws-tag-type.md. Consider consolidating shared examples or adding a cross-reference to avoid documentation drift.

Suggested change

	```ts
	// useBaseTypeOfLiteral: true
	/**
	* @throws {string}
	*/
	function test() {
	throw 'foo';
	}
	// useBaseTypeOfLiteral: false
	/**
	* @throws {'foo'}
	*/
	function test() {
	throw 'foo';
	}
	```
	### `preferUnionType`
	Default: `true`
	When more than one exception can be thrown, the types are added as a union type in the comment.
	If set to `false`, each exception is written on its own line.
	```ts
	// preferUnionType: true
	/**
	* @throws {FooError | BarError}
	*/
	function test() {
	if (Math.random() < 0.5) {
	throw new FooError();
	} else {
	throw new BarError();
	}
	}
	// preferUnionType: false
	/**
	* @throws {FooError}
	* @throws {BarError}
	*/
	function test() {
	if (Math.random() < 0.5) {
	throw new FooError();
	} else {
	throw new BarError();
	}
	}
	```
	For examples of how to use the `useBaseTypeOfLiteral` and `preferUnionType` options, refer to the documentation for the `check-throws-tag-type` rule [here](./check-throws-tag-type.md#examples).

[Copilot]

[nitpick] These examples mirror those in no-undocumented-throws.md. To improve maintainability, you might centralize these snippets or link between the two rule docs.