write notebooks per default

.github/workflows/git-bob.yml

@@ -81,6 +81,7 @@ jobs:
           ## Python specific instructions
 
           You preferably use the python libraries mentioned in the discussion.
+          Unless told otherwise, you write code in Python Jupyter Notebooks.
           If you create images, show the results and save them in variables for later reuse.
           If the user asks for the following simple tasks, use these code snippets.