website: Add benchmarking linkers blog post Change-Id: I8972efe769b132620b56565199514d400ac5940f Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5-website/+/67997 Tested-by: Bobby Bruce <bbruce@ucdavis.edu> Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Maintainer: Bobby Bruce <bbruce@ucdavis.edu>