In the section describing the remote_handler setting at http://xdebug.org/docs/remote#remote_handler there's a sentence which reads, "See more information in the introduction for Remote Debugging."

Clicking on this link causes the browser to reload the same page (as though it were a new / different page). Usability studies show that this behaviour can cause confusion for users.

I'd suggest either removing the anchor altogether or else modifying the href attribute so that it refers to a specific named anchor on the same page.
If keeping the sentence, I'd suggest including the word "above" so that it's clear that the introductory information it refers to is on the same page.