Bug#1128907: How to make a merge request

Hello Steve,

I have been trying and failing to make a merge request.

I have gotten my Salsa account approved, and forked the project to 
https://salsa.debian.org/Joey-aechelish/webwml-linkupdate/

but I cannot figure out how to push to it or pull from it. I succeeded 
in rebasing to the project, but SSH would not work, and git push gave me 
a 403 error, even though I am the owner and gave myself permission to 
push to it.

I'm pretty stuck at the moment, and cannot find solutions. If you could 
please provide guidance that would be extremely appreciated. I'm sure I 
likely missed a step somewhere in the instructions, but for the life of 
me I cannot determine what it is.

Thanks for your patience,

Joey