Unescape copyright template so that it can link to a license description

Author: ascholerChemeketa

runestone/common/project_template/_templates/plugin_layouts/sphinx_bootstrap/layout.html

@@ -334,9 +334,9 @@
     <p>
     {%- if show_copyright %}
       {%- if hasdoc('copyright') %}
-        {% trans path=pathto('copyright'), copyright=copyright|e %}&copy; <a href="{{ path }}">Copyright</a> {{ copyright }}.{% endtrans %}
+        {% trans path=pathto('copyright'), copyright=copyright %}&copy; <a href="{{ path }}">Copyright</a> {{ copyright }}.{% endtrans %}
       {%- else %}
-        {% trans copyright=copyright|e %}&copy; Copyright {{ copyright }}.{% endtrans %}
+        {% trans copyright=copyright %}&copy; Copyright {{ copyright }}.{% endtrans %}
       {%- endif %}
     {%- endif %}
     {%- if last_updated %}