Add docs for master

Change-Id: I1bf17b08fd817bda91e723c780f9e9ed46689c7b
Signed-off-by: Mohamed Abukar <abukar.mohamed@nokia.com>
diff --git a/.gitignore b/.gitignore
index 860c008..9c14461 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
-cache
-
+# documentation
+.tox
+docs/_build/