DOC: update SILL-2020 tag

#774
4 jobs for 774_update.SILL-2020 in 2 minutes and 14 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
passed #29099
composer_validate

00:00:31

passed #29100
php-lint

00:00:32

passed #29101
phpcs

00:00:32

passed #29102
phpunit

00:02:13

36.23%