Missing admonition title

Author: emiliom

resources/prep/git.md

@@ -96,7 +96,7 @@ Make sure your change appears online.
 git pull origin master
 ```
 
-```{admonition}
+```{admonition} "Short names for repositories:"
 "Remember `origin` is just a short name of the web address of the repository."
 To see what is hidden in origin: `git remote -v`
 ```