updated docs/components/control-sidebar.md

docs/components/control-sidebar.md

@@ -10,6 +10,7 @@ The following code should be placed within the `.wrapper` div. I prefer to place
 ##### Control Sidebar Push
 {: .text-bold .text-dark}
 By adding the `.control-sidebar-push` to `body`, the sidebar pushes the content away instead of overlaying the content.
+You can also add `.control-sidebar-push-slide` to `body`, to push the content away with an transition.
 
 ##### Dark Sidebar Markup
 {: .text-bold .text-dark}