Add doc related to setting up `pre-commit` hook

[thelovekesh]

Currently, we are using lint-staged to run linter on staged files but we are lacking documentation to add lint-staged on the pre-commit hook.
We can add a code snippet in the wiki that can help contributors/devs to set up the pre-commit hook something like this:

echo "set -e; composer run-script pre-commit" > .git/hooks/pre-commit
chmod +x .git/hooks/pre-commit

One more thought came up to my mind. What if the user is on Windows OS?
Should we add husky to overcome this issue? We can add a pre-commit hook using husky on the prepare script. So when the user runs npm install, husky will add a pre-commit hook.

[westonruter]

Using Husky would work. Or else there can just be Windows-specific instructions.

I'm a bit wary of npm install having such side effects.

[thelovekesh]

I'm a bit wary of npm install having such side effects.

prepare shouldn't have any side effects we need to worry about as a project like Gutenberg also uses it. Also using husky will make sure the pre-commit hook is being used properly. I think we should give it a try 👍🏼

[westonruter]

By side effects, I mean npm install doing anything other than populating node_modules and writing package-lock.json. But that's also what --ignore-scripts can avoid, so if you want to add husky I'm fine with it.