Adds note about React SPA

docs/demo.rst

@@ -1,9 +1,9 @@
 Demo project
 ============
 
-The idea of creating demo project was to show how you can potentially use
+This demo project shows how you can potentially use
 dj-rest-auth app with jQuery on frontend.
-Do these steps to make it running (ideally in virtualenv).
+To run this locally follow the steps below.
 
 .. code-block:: python
 
@@ -14,4 +14,14 @@ Do these steps to make it running (ideally in virtualenv).
     python manage.py migrate --settings=demo.settings --noinput
     python manage.py runserver --settings=demo.settings
 
-Now, go to ``http://127.0.0.1:8000/`` in your browser.
+
+Now, go to ``http://127.0.0.1:8000/`` in your browser. There is also a
+Single Page Application (SPA) in React within the ``demo/`` directory. To run this do:
+
+.. code-block:: python
+    cd react-spa/
+    yarn # or npm install
+    yarn run start
+
+
+Now, go to ``https://localhost:3000`` in your browser to view it.