Typo in reference title #23

There's a small typo in the "Informative References" section:

The title of the issue has an extra 5 at the end:

• "Add `application/javascript+module` mime to remove ambiguity5" (current)
• "Add `application/javascript+module` mime to remove ambiguity" (fixed)

(Also, the new line in the URL breaks the link in the HTML-rendered version)