footer: Update contact info

Author: Will Binns

_theme/footer.html

@@ -114,8 +114,8 @@
     <div>{% trans last_updated=last_updated|e %}Last updated on {{ last_updated }}.{% endtrans %} Released under the MIT License.</div>
   {%- endif %}
     <div>
-      <a class="footer-bottom-link" href="mailto:contact@bitcoindocumentation.org">Feedback</a> 
-      <a class="footer-bottom-link" href="mailto:contact@bitcoindocumentation.org">Questions</a></div>
+      <a class="footer-bottom-link" href="mailto:will@bitcoin.org">Feedback</a>
+      <a class="footer-bottom-link" href="mailto:will@bitcoin.org">Questions</a></div>
   </div>
 </footer>