fixes closing tag on disabled keyboard navigation example (Hacker0x01#755)

* fixes closing tag on disabled keyboard navigation example

* fix typo

Author: zonika

docs-site/src/examples/disabled_keyboard_navigation.jsx

@@ -24,8 +24,8 @@ export default React.createClass({
           {'<DatePicker'}<br />
               {'selected={this.state.startDate}'}<br />
               {'onChange={this.handleChange}'}<br />
-              <strong>{'disabledKeyboardNavigation />'}</strong><br />
-              {'placeholderText="This has disabled keyboard navigation"'}
+              <strong>{'disabledKeyboardNavigation'}</strong><br />
+              {'placeholderText="This has disabled keyboard navigation" />'}
         </code>
       </pre>
       <div className="column">