update the github organization question

Author: fdiblen

copier.yml

@@ -22,7 +22,8 @@ version:
   default: 0.1.0
 github_organization:
   type: str
-  default: "<my-github-organization>"
+  placeholder: "<my-github-organization>"
+  help: Enter the name of your GitHub username or organization
 full_name:
   type: str
   default: Jane Smith