Add Shoukaku to Client Libraries

Shoukaku is a Discord.js Client purely made for Discord.js v12

Author: Deivu

README.md

@@ -64,6 +64,7 @@ users about the compatibility of their clients to the Lavalink server.
 * [pylava](https://github.com/Pandentia/pylava) (discord.py, Python)
 * [SandySounds](https://github.com/MrJohnCoder/SandySounds) (JavaScript)
 * [eris-lavalink](https://github.com/briantanner/eris-lavalink) ([eris](https://github.com/abalabahaha/eris), JavaScript)
+* [Shoukaku](https://github.com/Deivu/Shoukaku) ([discord.js](https://github.com/discordjs/discord.js), JavaScript)
 * [discord.js-lavalink](https://github.com/MrJacz/discord.js-lavalink/) ([discord.js](https://github.com/discordjs/discord.js), JavaScript)
 * [SharpLink](https://github.com/Devoxin/SharpLink) ([Discord.Net](https://github.com/RogueException/Discord.Net), .NET)
 * [Victoria](https://github.com/Yucked/Victoria) ([Discord.NET](https://github.com/RogueException/Discord.Net), .NET)