add collab links pointing to main and 101 notebook (#587)

Author: mckornfield

utils/add-collab-link.py

@@ -14,6 +14,7 @@ def main(file_path: str):
     with open(file_path, encoding="utf-8") as f:
         notebook = nbformat.read(f, as_version=4)
         # _parent means same window, different tab
+        # Note, this is to "develop" for the develop branch
         collab_link = f"""<a target="_parent" href="https://colab.research.google.com/github/gretelai/gretel-blueprints/blob/main/{file_path}">
   <img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"/>
 </a>"""