Fix typos

README.md

 # FOSS-AG Guidelines
 
-* [Guidlines FOSS-AG](doc/guidlines_foss-ag.md)
-* [Guidlines Matrix Chaträume](doc/guidlines_chat.md)
-* [Guidlines GitHub/Gitea/Nextcloud](doc/guidlines_services.md)
\ No newline at end of file
+* [Guidelines FOSS-AG](doc/guidelines_foss-ag.md)
+* [Guidelines Matrix Chaträume](doc/guidelines_chat.md)
+* [Guidelines GitHub/Gitea/Nextcloud](doc/guidelines_services.md)