[less] repo description reduced height

might motivate user to put smth. in

conf/locale/locale_en-US.ini

@@ -400,7 +400,7 @@ repo_name = Repository Name
 repo_name_helper = A good repository name is usually composed of short, memorable and unique keywords.
 visibility = Visibility
 visiblity_helper = This repository is <span class="ui red text">Private</span>
-visiblity_helper_forced = Site admin has forced all new repositories to be <span class="ui red text">Private</span>
+visiblity_helper_forced = New repositories are private by default. You can change the state later.
 visiblity_fork_helper = (Change of this value will affect all forks)
 license_warn=Before making this public: Have you added a LICENSE file?
 listed = Listed

public/less/_gin.less

@@ -136,3 +136,8 @@ figure figcaption {
  opacity:1;
 }
 
+textarea#description {
+    height: 5em;
+    min-height: 5em;
+}
+