aks: addd git_prompt_reset

README.md

@@ -131,6 +131,14 @@ GIT_PROMPT_COMMAND_FAIL="${Red}✘-_LAST_COMMAND_STATE_ " # displays as ✘-1 fo
 - You can get help on the git prompt with the function ``git_prompt_help``.
   Examples are available with ``git_prompt_examples``.
 
+- If you make any changes to any file that is sourced by `gitprompt.sh`, you
+  should run this command, so that the next prompt update will find all the
+  files and source them anew.
+
+```sh
+git_prompt_reset
+```
+
 **Enjoy!**
 
 ## Alternative RPM Install