Merge branch 'ci_push' into 'master'

Push artifact to school.picasoft.net (CI) and update link in README

See merge request picasoft/apis/h19/init/linuxadv!1
2 jobs for master in 45 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #407890
docker
beamer-build

00:00:13

 
  Deploy
passed #407891
linux
synchronize

00:00:32