website: update .gitignore

Signed-off-by: Masanori Ogino <masanori.ogino@gmail.com>
Change-Id: I8f299a4d65be6105d228573a1075e14ca3fc6122
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5-website/+/55843
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Tested-by: Bobby Bruce <bbruce@ucdavis.edu>
1 file changed