Use "advice" instead of "advices" in .github/actions/spelling/advice.md (OSOE-570)

[DemeSzabolcs]

Advice is an uncountable noun even if the document has multiple entries it's just collectively advice. It is grammatically incorrect to pluralize it except in specific financial and legal documents (see https://en.wiktionary.org/wiki/advice). Correct it here: https://github.com/Lombiq/GitHub-Actions/blob/dev/.github/actions/spelling/advice.md#spell-checking-configuration-advices:~:text=Spell%20checking%20configuration-,advices,-Basics

Jira issue

[BenedekFarkas]

Isn't this overkill for a separate issue? Unless you created it for someone specifically to practice contributing to multiple repositories with submodules included.

BTW I'm currently working on Lombiq/Open-Source-Orchard-Core-Extensions#346 / OSOE-523, where I'm making changes to every repository involved in spell checking, so I can update them all. We can also add advices to the rejected word list.

[DemeSzabolcs]

Yeah, it might be overkill. I'm fine with addressing it in OSOE-523.

[BenedekFarkas]

Merged into Lombiq/Open-Source-Orchard-Core-Extensions#346.