Line wrapping

[bkmgit]

There is an issue in HPC Carpentry to wrap lines at 79 characters for easier viewing of diffs:
carpentries-incubator/hpc-intro#282
Might this be worth putting in the main lesson-example after testing it out in HPC Carpentry?

[brownsarahm]

maintainer hat on I like this!

I tend to do something roughly like this when I make PRs myself and occasionally will even modify slightly submitted PRs as a maintainer to move toward this, so making it officially a recommendation at least, if not a hard requirement would be nice.

[maxim-belkin]

There is a 100-character limit that is not enforced but checked in a permissive mode via make lesson-check-all