Switch Matrix room alias to matrix.org

Signed-off-by: Odyssium <hi@odyssey346.dev>

README.md

@@ -2,7 +2,7 @@
 
 Alternative front-end for GitHub written with Go. (WIP)
 
-[Matrix](https://matrix.to/#/%23gothub%3Atrygve.me?via=projectsegfau.lt&via=vern.cc&via=matrix.org&via=trygve.me)
+[Matrix](https://matrix.to/#/#gothub:matrix.org)
 [![Go Report Card](https://goreportcard.com/badge/codeberg.org/gothub/gothub)](https://goreportcard.com/report/codeberg.org/gothub/gothub)
 [![Website](https://img.shields.io/website?down_color=red&down_message=offline&up_color=green&up_message=online&url=https%3A%2F%2Fgothub.app)](https://gothub.app)