Add help class

Author: stsewd

readthedocs/templates/projects/projectrelationship_list.html

@@ -12,7 +12,7 @@
 {% block project_edit_content_header %}{% trans "Subprojects" %}{% endblock %}
 
 {% block project_edit_content %}
-  <p>
+  <p class="help_text">
     {% blocktrans trimmed %}
       Subprojects are projects hosted from the same URL as their parent project.
       This is useful for organizing multiple projects under a custom domain.