diff --git a/README.rst b/README.rst
index 4735029..1393d07 100644
--- a/README.rst
+++ b/README.rst
@@ -72,6 +72,11 @@ This example prints out the coordinates of a button each time it is pressed and
          time.sleep(0.08)
          current_press = pressed
 
+Documentation
+=============
+
+API documentation for this library can be found on `Read the Docs <https://circuitpython.readthedocs.io/projects/trellism4/en/latest/>`_.
+
 Contributing
 ============