Replace broken reference with code block

Author: Michael Wilson

index.html

@@ -274,8 +274,8 @@ <h2>
               the Promise is rejected with a {{DOMException}} parameter.
             </p>
             <p>
-              Multiple calls to {{requestMIDIAccess()}} are allowed
-              even if not all vended Promises have settled.
+              Multiple calls to <code>requestMIDIAccess()</code> are
+              allowed even if not all vended Promises have settled.
             </p>
             <p data-link-for="Navigator">
               When the {{requestMIDIAccess()}} method is called, the user agent