Update README.md

Author: Julius de Bruijn

README.md

@@ -8,7 +8,7 @@
 [travis]: https://travis-ci.org/panicbit/fcm-rust
 [coveralls]: https://coveralls.io/github/panicbit/fcm-rust
 
-[Matrix chat](https://matrix.to/#/!lcXPcLYqIXRyoxzJmp:nauk.io?via=nauk.io)
+[Matrix chat](https://matrix.to/#/#rust-push:nauk.io?via=nauk.io&via=matrix.org&via=shine.horse)
 
 ## Requirements