Match block and inline examples for consistency.

Summary:
**Summary**

A simple update to keep the examples consistent.
It could have gone either way, so I updated the second example to match the first.

**Test Plan**
N/A
Closes facebookarchive#1648

Differential Revision: D6976848

fbshipit-source-id: c6e4047d9f41b8776a1c7f50457495cfb0ee20ea

examples/draft-0-10-0/rich/rich.html

@@ -217,10 +217,11 @@
       ];
 
       const InlineStyleControls = (props) => {
-        var currentStyle = props.editorState.getCurrentInlineStyle();
+        const currentStyle = props.editorState.getCurrentInlineStyle();
+
         return (
           <div className="RichEditor-controls">
-            {INLINE_STYLES.map(type =>
+            {INLINE_STYLES.map((type) =>
               <StyleButton
                 key={type.label}
                 active={currentStyle.has(type.style)}