Fix broken link, spacing on events tip

tips/11-dom-event-listeners.md

@@ -9,7 +9,7 @@ next: initial-ajax.html
 
 > Note:
 >
-> This entry shows how to attach DOM events not provided by React ([check here for more info](/react/docs/tips/events.html)). This is good for integrations with other libraries such as jQuery.
+> This entry shows how to attach DOM events not provided by React ([check here for more info](/react/docs/events.html)). This is good for integrations with other libraries such as jQuery.
 
 Try to resize the window:
 
@@ -20,15 +20,19 @@ var Box = React.createClass({
   getInitialState: function() {
     return {windowWidth: window.innerWidth};
   },
+
   handleResize: function(e) {
     this.setState({windowWidth: window.innerWidth});
   },
+
   componentDidMount: function() {
     window.addEventListener('resize', this.handleResize);
   },
+
   componentWillUnmount: function() {
     window.removeEventListener('resize', this.handleResize);
   },
+
   render: function() {
     return <div>Current window width: {this.state.windowWidth}</div>;
   }
@@ -37,4 +41,4 @@ var Box = React.createClass({
 React.renderComponent(<Box />, mountNode);
 ```
 
-`componentDidMount` is called after the component's mounted and has a DOM representation. This is often a place where you'd attach generic DOM events.
+`componentDidMount` is called after the component is mounted and has a DOM representation. This is often a place where you would attach generic DOM events.