better readme

Author: zpao

README.md

@@ -1,12 +1,27 @@
-# React comment box example
+# React Tutorial
 
 This is the React comment box example from [the React tutorial](http://facebook.github.io/react/docs/tutorial.html).
 
 ## To use
 
-```
+There are several simple server implementations included. They all serve static files from `public/` and handle requests to `comments.json` to fetch or add data. Start a server with one of the following:
+
+### Node
+
+```sh
 npm install
 node server.js
 ```
 
-And visit http://localhost:3000/. Try opening multiple tabs!
+### Python
+
+```sh
+python server.py
+```
+
+### Ruby
+```sh
+ruby server.rb
+```
+
+And visit <http://localhost:3000/>. Try opening multiple tabs!