Anyone can edit the Wiki

[homersimpsons]

The wiki in https://github.com/koalaman/shellcheck/wiki can get edited by anyone.

The _Footer and _Sidebar page were seemingly vandalized:

• https://github.com/koalaman/shellcheck/wiki/_Footer/_history
• https://github.com/koalaman/shellcheck/wiki/_Sidebar/_history

I think wiki edition should be restricted.

It looks like you can report the following users (based on the histories above):

• https://github.com/Bunyuh
• https://github.com/ritchiepapirin
• https://github.com/Mahan6697 (already deleted)

[brother]

Vandalism has been a minimum and it has served us well to have it open.