Add relevant links in the "this guide" section

[ForgottenProgramme]

This section on the Peer Review Guide page is missing links to relevant information/pages.

@chiinita and I have the following suggestions:

Section on the Peer Review Guide page	Page we think it could be linked to
About Peer Review	About the pyOpenSci software peer review process
Our Partners	pyOpenSci Software Peer Review Partnerships
Review Guides	Guide for Reviewers

OR
Just remove it!

[lwasser]

@chiinita @ForgottenProgramme many thanks for this PR! i'm going to assign it to you!
I think removing that bottom section of the page is a great idea - great catch! please followup with a pull request to make the change! if you'd like to add quick links to the top for the major sections, feel free to do so.