Add CheatSheets plugin to third-party Run plugins documentation (#41952)

This PR adds the CheatSheets plugin to the third-party plugins
documentation in the General plugins section.

## CheatSheets Plugin
📚 CheatSheets for PowerToys Run - Find cheat sheets and command examples
instantly always at your fingertips with PowerToys Run plugin

![CheatSheets
Demo](https://github.com/ruslanlap/PowerToysRun-CheatSheets/blob/master/assets/demo-cheatsheets.gif)

This plugin enables users to instantly find cheat sheets and command
examples for various tools and programming languages without leaving
PowerToys Run.

### Features
- 🔍 Instant Search - Find commands and cheat sheets with fuzzy matching
- 📚 Multiple Sources - Integrates with tldr, cheat.sh, and offline cheat
sheets
- ⭐ Favorites System - Save and quickly access your most-used commands
- 📂 Categories - Browse commands by tool/language (git, docker, python,
etc.)
- 📊 Usage History - Tracks popular commands for quick access
- 💾 Smart Caching - Fast offline access with configurable cache duration
- 🎨 Modern UI - Beautiful WPF interface with theme adaptation
- 🔧 Offline Mode - Works without internet connection using cached data

## Link to plugin
- https://github.com/ruslanlap/PowerToysRun-CheatSheets

.github/actions/spell-check/allow/names.txt

@@ -210,6 +210,7 @@ capturevideosample
 cmdow
 Controlz
 cortana
+devhints
 dlnilsson
 fancymouse
 firefox
@@ -229,6 +230,7 @@ regedit
 roslyn
 Skia
 Spotify
+tldr
 Vanara
 wangyi
 WEX

doc/thirdPartyRunPlugins.md

@@ -50,6 +50,7 @@ Contact the developers of a plugin directly for assistance with a specific plugi
 | [Hotkeys](https://github.com/ruslanlap/PowerToysRun-Hotkeys) | [ruslanlap](https://github.com/ruslanlap) | Create, manage, and trigger custom keyboard shortcuts directly from PowerToys Run. |
 | [RandomGen](https://github.com/ruslanlap/PowerToysRun-RandomGen) | [ruslanlap](https://github.com/ruslanlap) | 🎲 Generate random data instantly with a single keystroke. Perfect for developers, testers, designers, and anyone who needs quick access to random data. Features include secure passwords, PINs, names, business data, dates, numbers, GUIDs, color codes, and more. Especially useful for designers who need random color codes and placeholder content. |
 | [Open With Cursor](https://github.com/VictorNoxx/PowerToys-Run-Cursor/) | [VictorNoxx](https://github.com/VictorNoxx) | Open Visual Studio, VS Code recents with Cursor AI |
+| [CheatSheets](https://github.com/ruslanlap/PowerToysRun-CheatSheets) | [ruslanlap](https://github.com/ruslanlap) | 📚 Find cheat sheets and command examples instantly from tldr pages, cheat.sh, and devhints.io. Features include favorites system, categories, offline mode, and smart caching. |
 
 ## Extending software plugins