Update README.md

README.md

@@ -35,6 +35,7 @@ MicroCART has 3 areas of development:
 [Continuous Integration (automatic build process) FAQ](documentation/ci_faq.md)  
 [How to document things on Gitlab](documentation/how_to_document_things_on_gitlab.md)  
 [How to update the website](website/README.md)  
+[How to use Git](documentation/how_to_use_git.md)
 
 # Stable Releases
 To browse stable releases from previous teams, view the [Tags](/../tags).