modify branch-1 doc

Signed-off-by: Arthur She <arthur.she@linaro.org>
Change-Id: Ic10b9db016d924ebd649c97d52b681ef700d5564
diff --git a/docs/index.rst b/docs/index.rst
index ee34b2d..027480c 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -6,6 +6,8 @@
 Welcome to Arthur Sandpit's documentation!
 ==========================================
 
+Branch-1
+
 .. toctree::
    :maxdepth: 2
    :caption: Contents: