Centered architecture diagram presentation in README and added some further reading links. Fixed blip in the image.

Author: clintonwoo

README.md

@@ -54,13 +54,20 @@ This project is a clone of hacker news rewritten with universal Javascript, usin
 
 ### Architecture Overview
 
-<img alt="Hacker News Clone Architecture Overview" width="auto" height="auto" src="docs/HN-Clone-Architecture-overview.png">
+<p align="center">
+  <img alt="Hacker News Clone Architecture Overview" width="auto" height="400px" src="docs/HN-Clone-Architecture-overview.png">
+</p>
+
+*Server.js* is the entry point. It uses Express and passes requests to Next. Next SSR renders the pages using ```getInitialProps()``` hook from Apollo helper. Therefore the app makes GraphQL requests on the client or server.
 
-### Execution Path
+When the client receives the page it preloads next page JS designated with ```<Link prefetch href="/">```. When the client navigates to the linked page it only needs to make a GraphQL query to render. *Great!*
 
-*Server.js* is the entry point. It uses Express and passes requests to Next. Next SSR renders the pages using *getInitialProps* hook from Apollo helper. Therefore the app makes GraphQL requests on the client or server.
+See more: <a href="https://github.com/zeit/next.js/">Next.js</a>,
+<a href="http://dev.apollodata.com/react/">Apollo GraphQL Client</a>
 
-When the client receives the page it preloads next page JS designated with <Link prefetch *href="/"*>. When the client navigates to the linked page it only needs to make a GraphQL query to render. *Great!*
+GraphQL: <a href="http://dev.apollodata.com/tools/graphql-tools/index.html">GraphQL-Tools by Apollo</a> 
+or
+<a href="http://graphql.org/graphql-js/">GraphQL docs</a>
 
 ### Directory Structure