update docker rmi with tags in the example

[jcp78]

File: engine/reference/commandline/rmi.md
specifically : https://docs.docker.com/engine/reference/commandline/rmi/#examples

Change the tag in the example to something other than 'latest'.
If there is a tag like 1.0 then it needs included in the rmi command-
$ docker rmi jcphillips/hello-world:1.0
This caused me issues because I just followed the example and used the repository name with out the tag and it failed.

[sudo-bmitch]

The above PR makes the latest tag explicit. Hopefully that will be useful in knowing to change latest to 1.0 in your situation.

[docker-robott]

Closed issues are locked after 30 days of inactivity.
This helps our team focus on active issues.

If you have found a problem that seems similar to this, please open a new issue.

/lifecycle locked