enhance: dnf.conf(5) docs link

frontend/coprs_frontend/coprs/templates/coprs/_coprs_forms.html

@@ -159,7 +159,7 @@ <h3 class="panel-title">{{ counter('instructions') }}. Other options</h3>
     {{ render_field(form.repo_priority,
         class="short-input-field",
         placeholder='Optional',
-        info='Use the priority=&lt;INT&gt; config option for repositories in this project, see man dnf.conf(5) for more info.') }}
+        info='Use the priority=&lt;INT&gt; config option for repositories in this project, see <a href="https://dnf.readthedocs.io/en/latest/conf_ref.html#repo-priority-label"><code>man dnf.conf(5)</code></a> for more info.') }}
 
     {{ render_field(form.isolation, placeholder='default') }}