Use --label name=* to update Name in docker info

This needs some context to explain what this might be used for. It also needs cleaning up to get it in line with the style guide and make it clearer and grammatically correct. 
Suggest:
To help you identify and describe a Docker daemon, you can add labels to to it with the `--label` flag. For example, `docker -d --label region=us-west --label storage=ssd` would get output via `docker info` as follows: