node: fix docs to actually refer to the correct package

[ThisIsMissEm]

It turns out that the lefthook package is actually a fake, and shouldn't be run, instead you'd want this change.

[ThisIsMissEm]

The wiki also needs to be updated to mention how to uninstall husky: https://github.com/evilmartians/lefthook/wiki/Migration-from-husky

Specifically the git config --unset core.hooksPath because husky messes with that.

[Envek]

Awesome! Thank you!

Interesting that npx lefthook run pre-commit works on my machine because I have lefthook installed from system package manager:

$ npx which lefthook                  
/usr/bin/lefthook

[Envek]

Also edited wiki. Thanks again!

[ThisIsMissEm]

Yeah, I'm not sure exactly what npx is doing there; it was working on my machine, but I thought I was getting trolled by the owner of the lefthook package on npm because weird husky stuff was happening (turned out they'd messed with the gitHooks path)

[ThisIsMissEm]

I've also submitted a ticket to npm about potentially getting the lefthook package name unscoped, as it's currently unused and there's lots that references it incorrectly