Improve the message showns when a new mirrored project is created

Fixes https://pagure.io/pagure/issue/4990

Signed-off-by: Pierre-Yves Chibon <pingou@pingoured.fr>

pagure/templates/repo_info.html

@@ -295,7 +295,7 @@
         <div class="alert {% if category == 'error' %}alert-warning{% else %}alert-info{%endif%}" role="alert">
           <p>This repo is brand new and meant to be mirrored from {{
                 repo.mirrored_from }} !</p>
-          <p>Mirrored projects are refreshed regularly, please seat tight, code will
+          <p>Mirrored projects are refreshed regularly. Please sit tight, code will
           come land soon!</p>
         </div>
     {% elif g.repo_obj and (g.repo_obj.is_empty or g.repo_obj.head_is_unborn) %}