Fixed layout on home to use 3 columns

_sass/_tiles.scss

@@ -9,8 +9,8 @@
     @include fill-parent;
   }
   @include media(new-breakpoint(min-width em(480) 12)) {
-    @include span-columns(3);
+    @include span-columns(4);
-    @include omega(4n);
+    @include omega(3n);
   }
   .entry-date {
     @include font-size(16,no);

index.md

@@ -24,9 +24,4 @@ image:
   <p class="post-excerpt">Duplicati is free software. You can download and use it for free even for commercial purposes. And its source code is available in public and licensed under LGPL.</p>
 </div>
 
-<div class="tile">
-  <h2 class="post-title">Platforms</h2>
-  <p class="post-excerpt">Duplicati runs on Windows, Linux, and MacOS. It requires .NET 4.5 or [Mono].</p>
-</div>
-
 </div>