description

there are some rules that we probably want to apply to all text files (maybe with some specific exceptions)

for example:

• new line at the end of file
• no mixture of tabs and spaces (maybe just no tabs)

there may be others

most lang linters will pick up these issues - but eg yaml files are failing this and we could/should just make a general rule

we probs only want to lint changes i guess rather than checking entire repo on every change