Updated forwardRef example to use named function

examples/16-3-release-blog-post/fancy-button-example.js

@@ -8,7 +8,7 @@ class FancyButton extends React.Component {
   render() {
     // highlight-next-line
     const {label, theme, ...rest} = this.props;
-    // highlight-range{4}
+    // highlight-range{5}
     return (
       <button
         {...rest}

examples/16-3-release-blog-post/forward-ref-example.js

@@ -16,10 +16,12 @@ function withTheme(Component) {
   }
 
   // Intercept the "ref" and pass it as a custom prop.
-  // highlight-range{1-3}
-  return React.forwardRef((props, ref) => (
+  // highlight-range{1, 3}
+  return React.forwardRef(function forward(props, ref) {
+    return (
       <ThemedComponent {...props} forwardedRef={ref} />
-  ));
+    );
+  });
 }
 
 // highlight-next-line