Update README.md

Author: adamint

README.md

@@ -10,7 +10,7 @@ This is the [Kotlin](https://kotlinlang.org/) implementation of the [Spotify Web
 If you have a question, you can:
 
 1. Create an [issue](https://github.com/adamint/spotify-web-api-kotlin/issues)
-2. Read (but that's hard)
+2. Join our [Discord server](https://discord.gg/G6vqP3S)
 3. Contact me using **Adam#9261** on [Discord](https://discordapp.com) or by sending me an email
 
 ## Contents
@@ -306,4 +306,4 @@ links provided for each API below
         11. `removeAllClientPlaylistTracks`
         12. `uploadClientPlaylistCover`
         13. `removeTrackFromClientPlaylist`
-        14. `removeTracksFromClientPlaylist`
+        14. `removeTracksFromClientPlaylist`