Suggest twine-check

To diagnose description render failures.

Author: sgillies

warehouse/templates/pages/help.html

@@ -83,7 +83,7 @@
 {% macro file_size_limit() %}{% trans %}How do I get a file size limit exemption or increase for my project?{% endtrans %}{% endmacro %}
 {% macro project_size_limit() %}{% trans %}How do I get a total project size limit exemption or increase for my project?{% endtrans %}{% endmacro %}
 {% macro vulnerability_data() %}{% trans %}Where does PyPI get its data on project vulnerabilities from, and how can I correct it?{% endtrans %}{% endmacro %}
-
+{% macro description_render_failure() %}{% trans %}Why am I getting "the description failed to render" error?{% endtrans %}{% endmacro %}
 
 {% macro file_name_reuse() %}{% trans %}Why am I getting a "Filename or contents already exists" or "Filename has been previously used" error?{% endtrans %}{% endmacro %}
 {% macro project_name() %}{% trans %}Why isn't my desired project name available?{% endtrans %}{% endmacro %}
@@ -165,6 +165,7 @@ <h2><a href="#administration">{% trans %}Administration of projects on PyPI{% en
       <section class="faq-group faq-group--list">
         <h2><a href="#troubleshooting">{% trans %}Troubleshooting{% endtrans %}</a></h2>
         <ul>
+          <li><a href="#description-render-failure">{{ description_render_failure() }}</a></li>
           <li><a href="#uploading">{{ uploading() }}</a></li>
           <li><a href="#login-problem">{{ login_problem() }}</a></li>
           <li><a href="#account-recovery">{{ account_recovery() }}</a></li>
@@ -864,6 +865,13 @@ <h3 id="pronunciation">{{ pronunciation() }}</h3>
           {% endtrans %}
         </p>
 
+        <h3 id="description-render-failure">{{ description_render_failure() }}</h3>
+        <p>
+          {% trans trimmed href='https://twine.readthedocs.io/en/latest/#twine-check', title=gettext('External link') %}
+            To diagnose a description render error, use twine's <a href="{{ href }}" title="{{ title }}">check command</a>.
+          {% endtrans %}
+        </p>
+
       </section>
     </div>
   </div>