Advertise `micromamba env create` with conda-lock.yml

[maresb]

Checklist

• I added a descriptive title
• I searched open reports and couldn't find a duplicate

What happened?

Micromamba installs from conda-lock.yml files, and this is extremely useful. I thought this was mentioned more widely in the readme, docs, and output files, but it's not.

Ref: https://mamba.readthedocs.io/en/latest/user_guide/mamba.html#conda-lock-yaml-spec-files

Additional Context

No response