script inventory plugin, link to dev script howto docs (#80796)

lib/ansible/plugins/inventory/script.py

@@ -28,6 +28,8 @@ DOCUMENTATION = '''
     notes:
         - Enabled in configuration by default.
         - The plugin does not cache results because external inventory scripts are responsible for their own caching.
+        - To write your own inventory script see (R(Developing dynamic inventory,developing_inventory) from the documentation site.
+        - To find the scripts that used to be part of the code release, go to U(https://github.com/ansible-community/contrib-scripts/).
 '''
 
 import os