Added a new Books section (graphql#248)

* Update Community-Resources.md
  * Added a new Books section
  * Added a new book link under Books section

Author: packtpartner

site/community/Community-Resources.md

@@ -81,6 +81,10 @@ Developers inside and outside of Facebook have given talks about GraphQL at conf
 - [Build a Full GraphQL Backend in Under 5 Minutes](https://www.youtube.com/watch?v=bJ8pnYd6jPQ) - Michael Paris
 - [GraphQL in Production: Backend as a Service](https://www.youtube.com/watch?v=U2NKoStGBvE) - Michael Paris & Vince Ning, GraphQL in Production Meetup SF August 2016
 
+## Books
+
+- [Learning GraphQL and Relay](https://www.packtpub.com/web-development/learning-graphql-and-relay) by Samer Buna
+
 ## More Resources
 
 To explore other community-developed resources and content about GraphQL, take a look at these sites: