template update: include link to github issues on reference pages and add creativecommons license text to go along with existing image on every page

Author: FeXd

template/page_template.jinja

@@ -41,6 +41,7 @@
                 <!-- Creative Commons License -->
                 <div class="license">
                     <a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/"><img alt="Creative Commons License" style="border: none" src="http://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png" /></a>
+                    <p>This work is licensed under a <a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/">Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License</a></p>
                 </div>
 
             </div>

template/reference_index_template.jinja

@@ -22,4 +22,5 @@
     {% endif %}
 {% endfor %}
 </div>
+<p>If you see any errors or have comments, please <a href="https://github.com/jdf/processing-py-site/issues?state=open">let us know.</a></p>
 {% endblock %}

template/reference_item_template.jinja

@@ -73,5 +73,6 @@
     {% endif %}
 </table>
 
-Updated on {{ today }}.
+<p>Updated on {{ today }}.</p>
+<p>If you see any errors or have comments, please <a href="https://github.com/jdf/processing-py-site/issues?state=open">let us know.</a></p>
 {% endblock %}