Update documentation for Learning Gem5 on new style stats

Hey Thomas,
This is the documentation of the format for the changes made to the new stats:

And this is a document detailing which stats were merged to the develop branch and their respective Gerrit patchsets that contain the different names:

This Jira issue is a reminder to update learning gem5 for this Gerrit change that was merged: https://gem5-review.googlesource.com/c/public/gem5/+/34135

Hi,

I’m not a gem5 developer, but I came across issues related to the new stats not being documented when using gem5 for my Masters thesis. I am currently putting together documentation based on the things I discovered/learned when trying to get the new stats working. Could you please let me know which stats you tried to use and, if you know, what they are now called so that I can include them in the updated documentation and hopefully get this fixed?

All the best,
Thomas