Update documentation for .layout-boxed

https://github.com/almasaeed2010/AdminLTE/blob/master/dist/css/AdminLTE.css#L44

documentation/index.html

@@ -735,7 +735,7 @@ AdminLTE/
             <ul>
               <li><b>Fixed:</b> use the class <code>.fixed</code> to get a fixed header and sidebar.</li>
               <li><b>Collapsed Sidebar:</b> use the class <code>.collapsed-sidebar</code> to have a collapsed sidebar upon loading.</li>
-              <li><b>Boxed Layout:</b> use the class <code>.layout-boxed</code> to get a boxed layout that stretches only to 1024px.</li>
+              <li><b>Boxed Layout:</b> use the class <code>.layout-boxed</code> to get a boxed layout that stretches only to 1250px.</li>
               <li><b>Top Navigation</b> use the class <code>.layout-top-nav</code> to remove the sidebar and have your links at the top navbar.</li>
             </ul>
             <p><b>Note:</b> you cannot use both layout-boxed and fixed at the same time. Anything else can be mixed together.</p>
@@ -1776,4 +1776,4 @@ AdminLTE/
       });
     </script>
   </body>
-</html>
\ No newline at end of file
+</html>