Add new docs files to mkdocs (#1507)

docs/README.md

@@ -0,0 +1,8 @@
+# Building the Ansible AWX Operator Docs
+
+To build the AWX Operator docs locally:
+
+1. Clone the AWX operator repository. 
+2. From the root directory:
+    a.  pip install --user -r docs/requirements.txt
+    b.  mkdocs build