Feat.: add an uninstall script

[realhackcraft]

There is a install script, but no uninstall script for bash. I want to switch my superfile to being managed by homebrew.

Describe the solution you'd like
Create a uninstall.sh file and host that on netlify.

Describe alternatives you've considered
Read the install script and rm -rf everything that it added.

[MrPandir]

Um, why do you need a script for this if you only want to remove one single file? 😐

If you used the installation script, it would be /usr/local/bin/ or ~/.local/bin/.

[realhackcraft]

Ok, I didn't know that. I thought the install might've included some dependencies? Then I think there should be a note on the readme saying that it only installs a a single binary to that path.

I might create a PR later.