Fix docs badge URL.

Author: kattni

README.rst

@@ -2,7 +2,7 @@
 Introduction
 ============
 
-.. image:: https://readthedocs.org/projects/adafruit-circuitpython-register/badge/?version=latest
+.. image:: https://readthedocs.org/projects/adafruit-micropython-register/badge/?version=latest
     :target: https://circuitpython.readthedocs.io/projects/register/en/latest/
     :alt: Documentation Status
 
@@ -222,5 +222,3 @@ Now, once you have the virtual environment activated:
 This will output the documentation to ``docs/_build/html``. Open the index.html in your browser to
 view them. It will also (due to -W) error out on any warning like Travis will. This is a good way to
 locally verify it will pass.
-
-