As I was contributing PR #34 I noticed that, on save, my editor trimmed trailing whitespace - which is just what I have my editor set to do. I wasn't sure if that was the right thing to do for this repo, though.

It might be good to have...

• An .editorconfig with line ending, tab/space, trailing whitespace settings. This should help unify how people edit things.
• A .gitattributes just to make sure things like text files are handled like text. Line endings get tricky.
• A .markdownlint.json to control what rules you want to enforce with Markdown. For example, standardizing on two spaces for list indents may be interesting to ensure things are unified.
• Maybe prettier rules to help guide auto-formatting or pre-commit hooks to help enforce line endings or formatting.
• Maybe code spell checker config to help catch typos.

If any of those are interesting, I can put in a PR to help.