Docs: Update usage page to reference webpack

Author: Dustin Masters

site/jekyll/getting-started/usage.md

@@ -7,20 +7,20 @@ Once installed, create your React components as usual.
 
 ```javascript
 // /Scripts/HelloWorld.jsx
-const HelloWorld = (props) => {
-  return (<div>Hello {props.name}</div>);
+const HelloWorld = props => {
+	return <div>Hello {props.name}</div>;
 };
 ```
 
-On-the-fly JSX to JavaScript Compilation
-----------------------------------------
+## On-the-fly JSX to JavaScript Compilation
+
 Hit a JSX file in your browser (eg. `/Scripts/HelloWorld.jsx`) and observe
 the magnificence of JSX being compiled into JavaScript with no precompilation
 necessary.
 
-Next Steps
------------
+## Next Steps
+
 On-the-fly JSX compilation is good for fast iteration during development, but
 for production you will want to precompile for best performance. This can be
-done via [ASP.NET Bundling and Minification](/guides/weboptimizer.html) or
-[Cassette](/guides/cassette.html).
+done via [Webpack](/bundling/webpack.html) (recommended), [ASP.NET Bundling and Minification](/bundling/weboptimizer.html) or
+[Cassette](/bundling/cassette.html).