Decouple task display name and runme list name

[pelletier2017]

It would be nice if we could decouple the display name for a task and it showing up on runme list. Right now if you do something like runme run -c myCategory you'll get a ton of kubectlApply1 through kubectlApply6 where I'd like to name them but can't do so without having them show up on the publicized* API of runme list.

[sourishkrout]

Thanks for filing this! See your point for sure.