Add onos group to 'repo init' for single node install

Change-Id: Ied97440a5c2751a45ecb1af38a5e9a886ea4dd84
diff --git a/docs/quickstart.md b/docs/quickstart.md
index 3af05ce..f4cd961 100644
--- a/docs/quickstart.md
+++ b/docs/quickstart.md
@@ -79,7 +79,7 @@
 To clone the repository, on your OtP build host issue the `git` command:
 ```
 mkdir opencord && cd opencord
-repo init -u https://gerrit.opencord.org/manifest -b master -g build
+repo init -u https://gerrit.opencord.org/manifest -b master -g build,onos
 ```
 
 Fetch the opencord source code