formatting and some hr to make it more organized

docs/mkdocs.yml

@@ -42,6 +42,7 @@ pages:
 
 - ['guides/gettingstarted.md', 'User Guides', 'Getting started']
 - ['guides/whats-new-in-v2.md', 'User Guides', "What's New in Grafana v2.0"]
+- ['guides/whats-new-in-v2-1.md', 'User Guides', "What's New in Grafana v2.1"]
 - ['guides/screencasts.md', 'User Guides', 'Screencasts']
 
 - ['reference/graph.md', 'Reference', 'Graph Panel']