I think that if we want this example in there, we need to explain more
about how it works.

Minor fixes

Migrate PseudoConstant Reference Document

I just renamed the wiki page to remove the parenthesis and then
simplified these redirects. Why? Because I'm not sure how our redirect
system will handle this and want to err on the side of caution.

Fix URLs to be standard

Update hook_civicrm_caseSummary.md

Migrate Quickform Reference Documents

(so that we can avoid a broken link in a wiki page we're migrating)