Reduce margin under projects filter

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/assets/stylesheets/pages/projects.scss

@@ -256,7 +256,7 @@ pre.light-well {
   margin: -15px;
   background-color: #f8fafc;
   padding: 18px;
-  margin-bottom: 10px;
+  margin-bottom: 0px;
   border-top: 1px solid #e7e9ed;
   border-bottom: 1px solid #e7e9ed;