Make error message bold on the decoder page (reactjs#582)

* Make error message bold on the decoder page

* Update ErrorDecoder.js

* Update ErrorDecoder.js

Author: gaearon

src/components/ErrorDecoder/ErrorDecoder.js

@@ -77,8 +77,12 @@ function ErrorResult(props: {|code: ?string, msg: string|}) {
 
   return (
     <div>
-      <p>The full text of the error you just encountered is:</p>
-      <code>{urlify(errorMsg)}</code>
+      <p>
+        <b>The full text of the error you just encountered is:</b>
+      </p>
+      <code>
+        <b>{urlify(errorMsg)}</b>
+      </code>
     </div>
   );
 }