Community Wishlist Survey 2022/Rating (reviewing) wikis

Proposed by GTrang

Proposal summary: Miraheze should have a way to "rate" or "review" existing wikis.

Full proposal: With a rating system, people could make comments about any wiki, including but not limited to the following types:
 * Whether they like or dislike the wiki.
 * Whether the wiki is one of the best or worst Miraheze wikis.
 * Whether or not they recommend the wiki to others.
 * Compare the wiki to other similar websites on the World Wide Web.