add docs link to readme

FoamyGuy · FoamyGuy · commit ef8582a26b2a · 2021-10-25T11:23:35.000-05:00
diff --git a/README.rst b/README.rst
@@ -79,6 +79,11 @@ Usage Example
             tca[channel].unlock()
 
 
+Documentation
+=============
+
+API documentation for this library can be found on `Read the Docs <https://circuitpython.readthedocs.io/projects/tca9548a/en/latest/>`_.
+
 Contributing
 ============
 
