SEBA-687 add cordctl documentation

Change-Id: I9e47717ab387a28f88b8e5b995ecf839c834751b
diff --git a/git_refs b/git_refs
index 9e9dd1a..090fbd7 100644
--- a/git_refs
+++ b/git_refs
@@ -12,6 +12,7 @@
 _REPO NAME_           _DIR_    _REF_
 
 att-workflow-driver   /docs    master
+cordctl               /        master
 cord-tester           /docs    master
 fabric                /docs    master
 fabric-crossconnect   /docs    master