Make draft UI for creating new file in empty repository

app/assets/stylesheets/generic/buttons.scss

@@ -173,6 +173,11 @@
       margin-right: 0px;
     }
   }
+
+  &.btn-lg {
+    font-size: 15px;
+    line-height: 1.4;
+  }
 }
 
 .btn-block {

app/views/projects/empty.html.haml

@@ -3,6 +3,17 @@
 
 = render "home_panel"
 
+.center.well
+  %h3
+    The repository for this project is empty
+  %p.lead
+    You can
+    = link_to '#', class: 'btn btn-new btn-lg' do
+      add a file
+     or push it via command line.
+
+%h4
+  %strong Command line instructions
 %div.git-empty
   %fieldset
     %legend Git global setup