Update README.md

plugins/docker/README.md

+## Docker autocomplete plugin
+
+- Adds autocomplete options for all docker commands.
+- Will also show containerIDs and Image names where applicable
+
+####Shows help for all commands
+![General Help](http://i.imgur.com/tUBO9jh.png "Help for all commands")
+
+
+####Shows your downloaded images where applicable
+![Images](http://i.imgur.com/R8ZsWO1.png "Images")
+
+
+####Shows your running containers where applicable
+![Containers](http://i.imgur.com/WQtbheg.png "Containers")
+
+
+
+Maintainer : Ahmed Azaan ([@aeonazaan](https://twitter.com/aeonazaan))