Update docs and mamba/boa versions

Fixes #97 (closed)

changed milestone to %The Great Deprecation

requested review from @lcolbois

assigned to @amohammadi

LGTM.

I am a bit confused about what we should use for what purpose. Those bdt dev commands are still using the Bob conda beta channel underneath right ?

When should we do full source checkout instead (like you were mentioning on Mattermost) ?

merged

mentioned in commit dedd5963

When should we do full source checkout instead (like you were mentioning on Mattermost) ?

I would like us to move to this model of development but that needs a deeper change in the docs.