Add git status to the readme

README.md

@@ -220,6 +220,12 @@ You can also **execute** a custom command in each module's directory inside the
 ```bash
 armarx-setup exec ls
 armarx-setup exec "echo \$(pwd)"
+armarx-setup exec "git status"
+```
+
+To get the **status** of each **git** repository in a nice table, run:
+```bash
+armarx-setup git status
 ```