Module DOCUMENTATION: assemble, authorized_key, command, copy

plus a small fix in rst.j2 template
  manpages generated & checked
  modules.html generated & checked

hacking/templates/rst.j2

@@ -44,7 +44,7 @@
 .. raw:: html
 
 {% for example in examples %}
-    <p>@{ example['description'] }@</p>
+    {% if example['description'] %}<p>@{ example['description'] | html_ify }@</p>{% endif %}
     <p><pre>
     @{ example['code'] }@</pre></p>
 {% endfor %}