Merge pull request #4757 from crosbymichael/osx-duh

Add sudo clause if your using osx or tcp
Upstream-commit: 3b5b2f8953387077e4dabe53936bc5867e145ea0
Component: engine

components/engine/docs/sources/examples/example_header.inc

@@ -4,4 +4,5 @@
     * This example assumes you have Docker running in daemon mode. For
       more information please see :ref:`running_examples`.
     * **If you don't like sudo** then see :ref:`dockergroup`
+    * **If you're using OS X or docker via TCP** then you shouldn't use `sudo`