add user guide link in README
@@ -154,8 +154,8 @@ make cool projects:
Currently along with other areas of the project, documentation is still in an
early phase.
-You can read the [online documentation](https://rustpython.github.io/docs/) for the
-latest release.
+You can read the [online documentation](https://docs.rs/rustpython-vm) for the
+latest release, or the [user guide]((https://rustpython.github.io/docs/)).
You can also generate documentation locally by running:
