Request: combine "The Number of Trusted Hops" with "X-Forwarded-For" settings pages

[kenjenkins]

Page: https://www.pomerium.com/docs/reference/the-number-of-trusted-hops

What's incorrect or missing

I think this setting would be clearer if it were grouped with https://www.pomerium.com/docs/reference/x-forwarded-for-http-header. The xff_num_trusted_hops and skip_xff_append settings both affect the behavior of the X-Forwarded-For and X-Forwarded-Proto headers, so I think it would be good to document these together like we do with some of the other closely-related settings.

Also, the description could be clearer: "The Number of Trusted Hops setting reverse proxies in front of Pomerium" doesn't make sense.

What's the resolution?

Let's combine these two into an "X-Forwarded-For Settings" page, and provide some more explanation and examples of how/when you might want to use these settings.

[ZPain8464]

@kenjenkins I think this is a reasonable request. I'll do some research on the X-Forwarded-For and X-Forwarded-Proto headers to see how we can better communicate what these settings do.

I may have some questions before pushing a PR. I'll notify you if I do.