the package now adds the bash_completion too

Docker-DCO-1.1-Signed-off-by: SvenDowideit <SvenDowideit@home.org.au> (github: SvenDowideit)

docs/sources/installation/debian.md

@@ -23,7 +23,6 @@ To install the latest Debian package (may not be the latest Docker release):
 
     $ sudo apt-get update
     $ sudo apt-get install docker.io
-    $ sudo sed -i '$acomplete -F _docker docker' /etc/bash_completion.d/docker.io
 
 To verify that everything has worked as expected: