EDU-4119: Explain what API calls are Visibility API calls

[GSmithApps]

Temporal Affiliation

• I am a Temporal employee

Content Suggestion

Can we list what API calls are Visibility API calls? A user says they often ask support which API calls are Visibility API calls and therefore subject to lower rate limits. They asked if there is any chance we can update the limits page with at least a link to the code where it is defined?

[fairlydurable]

This is a great first step. Let me see what I can do on this one. Thanks for the issue.

[fairlydurable]

First attempt linked as PR

[GSmithApps]

I'm hoping we can also merge this OSS PR to make sure the docs stay up-to-date