website: Add links to Bootcamp '22 Contribution tutorial

Change-Id: I4ec75375907734e701e6dd2528704438e3374630
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5-website/+/62176
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Tested-by: Bobby Bruce <bbruce@ucdavis.edu>
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
1 file changed