From a trainee: add a section on dealing with collaboration problems

### How could the content be improved?

Suggestion from a Trainee in the Zoom chat today:

> I wonder if a section on dealing with collaboration problems would be useful addition for lots of teams

I am not sure we have the space for this within the curriculum itself, but it would certainly be an incredibly helpful resource to have. Something for a themed community discussion perhaps? And/or a collaboration drive at a CarpentryConnect? Collaborations Workshop?

Start by reviewing the existing curriculum and deciding whether collaboration problems belong in it or as a separate resource. Compare the suggested formats, such as a themed community discussion or collaboration event, and define a concrete scope. Done means the project has an agreed format, location, and content plan for addressing the suggestion.

Written by the indexing model from the issue text.