Added theme to documentation

Author: TomHAnderson

.documentation/index.rst

@@ -5,7 +5,7 @@ This project is an example of directory structure in an Angular application but
 
 Here we cover the parts of the application directory structure and the function of each:
 
-* `~/src/theme <theme.rst>`_
+* `~/src/main.scss <theme.rst>`_
 * `~/src/app/core <core.rst>`_
 * `~/src/app/data <data.rst>`_
 * `~/src/app/layout <layout.rst>`_

.documentation/theme.rst

@@ -0,0 +1,5 @@
+Theming 
+=======
+
+The ``~/app/main.scss`` pulls in the themes in the ``~/app/theme`` directory 
+as well as bootstrap and Angular material theming.