Merge branch 'default-platform' into 'master'

Set a default platform for exercises & activities

Closes #45

See merge request grp-bio-it/image-analysis-training-resources!36
3 jobs for master in 1 minute and 23 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
passed #27108
test

00:00:43

 
  Deploy
passed #27109
pages

00:00:40

passed pages:deploy

00:00:01