The VG Resource

What's the guidelines for replacing sheets, like one that misspells credit as "creedit" while also adding newer rips to the sheet.

Click on the desired sheet and there is an option to revise (top right).

You’ll be able to upload an updated sheet, change its name, icon and section.

I assume you're asking more about who is listed as the submitter. If you're making significant changes, add yourself to the list of submitters. If you're replacing the sheet entirely, change it to yourself. If you're just fixing a spelling issue or something similar, just submit the revision and leave the rest as is (though we do appreciate you keeping the site tidy!).