Update prometheus-setup.md

ashishrpandey · web-flow · commit d960a71ff4f0 · 2019-07-19T09:51:37.000+05:30
diff --git a/prometheus-setup.md b/prometheus-setup.md
@@ -27,3 +27,7 @@ Then create service
 Open in browser:
 
     <publicip>:30000
+
+
+Reference: 
+https://devopscube.com/setup-prometheus-monitoring-on-kubernetes/
