CORD-3130 Add link to Openstack service developer documentation

Change-Id: I752343d58d89a062fce64aed6e6a7be3eec87ec7
diff --git a/Makefile b/Makefile
index 39538b3..c477978 100644
--- a/Makefile
+++ b/Makefile
@@ -20,7 +20,7 @@
 build: setup
 	gitbook build
 
-setup: automation-tools cord-tester fabric hippie-oss kubernetes-service olt-service openolt rcord vrouter xos xos-gui xos-tosca swagger $(GENERATED_DOCS)
+setup: automation-tools cord-tester openstack fabric hippie-oss kubernetes-service olt-service openolt rcord vrouter xos xos-gui xos-tosca swagger $(GENERATED_DOCS)
 	gitbook init
 	gitbook install
 
@@ -65,6 +65,9 @@
 vrouter:
 	ln -s ../orchestration/xos_services/vrouter/docs vrouter
 
+openstack:
+	ln -s ../orchestration/xos_services/openstack/docs openstack
+
 xos:
 	ln -s ../orchestration/xos/docs xos
 
@@ -81,4 +84,4 @@
 	rm -rf $(GENERATED_DOCS)
 	rm -rf _book
 	rm -rf node_modules
-	rm -rf automation-tools cord-tester fabric hippie-oss kubernetes-service olt-service openolt rcord vrouter test xos xos-gui xos-tosca
+	rm -rf openstack automation-tools cord-tester fabric hippie-oss kubernetes-service olt-service openolt rcord vrouter test xos xos-gui xos-tosca