Merge branch 'master' of https://github.com/reactjs/reactjs.org into sync-5849f604

Author: reactjs-translation-bot

content/community/tools-misc.md

@@ -9,7 +9,7 @@ permalink: community/misc.html
 
 * **[react-inspector](https://github.com/xyc/react-inspector):** Use DevTools-like object inspectors inside your React app.
 * **[jreact](https://github.com/KnisterPeter/jreact):** Rendering react server-side within a JVM (Java 7 or Java 8)
-* **[react-jss](https://github.com/jsstyles/react-jss):** Inject and mount jss styles in React components.
+* **[react-jss](https://github.com/cssinjs/jss/tree/master/packages/react-jss):** Inject and mount jss styles in React components.
 * **[django-react](https://github.com/markfinger/django-react):** Server-side rendering of React components for django apps.
 * **[react-engine](https://github.com/paypal/react-engine):** Composite render engine for isomorphic express apps to render both plain react views and react-router views.
 * **[react-render-visualizer](https://github.com/redsunsoft/react-render-visualizer):** A visual way to see what is (re)rendering and why.

content/docs/accessibility.md

@@ -281,13 +281,13 @@ class OuterClickExample extends React.Component {
     return (
       <div ref={this.toggleContainer}>
         <button onClick={this.onClickHandler}>Select an option</button>
-        {this.state.isOpen ? (
+        {this.state.isOpen && (
           <ul>
             <li>Option 1</li>
             <li>Option 2</li>
             <li>Option 3</li>
           </ul>
-        ) : null}
+        )}
       </div>
     );
   }
@@ -347,13 +347,13 @@ class BlurExample extends React.Component {
                 aria-expanded={this.state.isOpen}>
           Select an option
         </button>
-        {this.state.isOpen ? (
+        {this.state.isOpen && (
           <ul>
             <li>Option 1</li>
             <li>Option 2</li>
             <li>Option 3</li>
           </ul>
-        ) : null}
+        )}
       </div>
     );
   }