Update README

README.md

@@ -10,8 +10,8 @@ image: "registry.jsc.fz-juelich.de/faber1/gitlab-container/testing:rust"
 in your ```.gitlab-ci.yml```.
 
 ##  Available Containers
-### Rust Testing
-Bare rust image: ```gitlab-container/testing:rust```
+### Rust
+Bare rust testing image: ```gitlab-container/testing:rust```
 
 
 ## Create a Container