Please add/update dataform CLI documentation

[frans-snyders]

The current CLI documentation is lacking in the code
and the online documents only give a high level overview

I asked AI to create a summary CLI readme that can be added as cli/README.md

README.md

[kolina]

The issue title has "docker CLI", I hope it's a typo and you just need Dataform CLI documentation? Otherwise will assign to Rafal to triage and find assignee

[frans-snyders]

i meant dataform CLI 😋

[rafal-hawrylak]

i meant dataform CLI 😋

Sure thing, we have it on our backlog already