Use friendly name

Author: jevgenijsp

src/Geta.NotFoundHandler.Admin/Areas/GetaNotFoundHandlerAdmin/Pages/Regex.cshtml

@@ -11,7 +11,7 @@
             <thead>
             <tr>
                 <th class="col-1">
-                    <vc:sortable-header-cell key="@nameof(RegexRedirect.OrderNumber)" display-name="OrderNumber"/>
+                    <vc:sortable-header-cell key="@nameof(RegexRedirect.OrderNumber)" display-name="Order Number"/>
                 </th>
                 <th>
                     <vc:sortable-header-cell key="@nameof(RegexRedirect.OldUrlRegex)" display-name="Old URL Regex"/>