Update README.md

Author: python-sidebar

README.md

@@ -1,2 +1,18 @@
 # python-docs-101.github.io
-The Official Python Docs -- but with an added TOC panel
+The Official Python Docs ➡ but with an added TOC panel!
+
+- https://python-docs-101.github.io/
+
+### You are here - GitHub Pages repo
+
+This repo houses the GitHub pages website. <br>
+This is just the baked output.
+
+### See also - cpython fork (updates doc theme only)
+The modifications to the input for the Sphinx build configs <br>
+live inside the following fork of `cpython` repo (which is where the official Python docs live)
+
+The page you are on now <br>
+is the result of running `sphinx-build` on the following fork's `Doc/` folder:
+
+- https://github.com/python-docs-101/Python-Documentation-Theme-Fork