Add help text / examples to the possible experiment commands

[keevan]

Currently, it seems to take a certain amount of technical capability to add these values and to know if they are valid / work as expected.

I think a few examples would help with that.

Generally I wouldn't expect a user to go out of their way to find the github repository and to read the docs themselves, so having enough documentation in the UI and perhaps a link to the readme section would be good to cover any remaining gaps.