Added Doxygen for v20.0.0.2

Change-Id: I8cef3a041af0482a92f28c15d5656d0efea9e525
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5-website/+/30114
Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
Tested-by: Bobby R. Bruce <bbruce@ucdavis.edu>
1 file changed