Add note on force push for dev-branches

README.md

@@ -63,6 +63,8 @@ You can check the syntax of the files by running `ansible-playbook --check-synta
 
 If you just want to install one or many packages you can use `jabref.yml` as a basis.
 
+Be aware that the development branches here are not save and the owner might force push to them!
+
 # Run as admin 
 ## Bootstrap
 * Add your SSH-key to the host `ssh-copy-id lasXXX.las.kit.edu`