Add link to emoji finder. 🔗

Author: ivavictoria

README.md

@@ -346,6 +346,7 @@ GitHub uses [Linguist](https://github.com/github/linguist) to perform language d
 Emojis can be added to Pull Requests, Issues, commit messages, repository descriptions, etc. using `:name_of_emoji:`.
 
 The full list of supported Emojis on GitHub can be found at [emoji-cheat-sheet.com](http://www.emoji-cheat-sheet.com/) or [scotch-io/All-Github-Emoji-Icons](https://github.com/scotch-io/All-Github-Emoji-Icons).
+A handy emoji search engine can be found at [emoji.muan.co](http://emoji.muan.co/).
 
 The top 5 used Emojis on GitHub are: