Update 2020-12-01-facetav.md

3 jobs for master in 3 minutes and 11 seconds (queued for 3 seconds)
Status Name Job ID Coverage
  Build
passed build #470315
docker

00:01:30

 
  Deploy
failed deadlinks #470316
docker allowed to fail

00:01:16

passed deploy #470317
docker

00:00:24

 
Name Stage Failure
failed
deadlinks Deploy
  *  External link https://www.doc.ic.ac.uk/~pg/papers/mfps15.pdf failed: 404 No error
rake aborted!
HTML-Proofer found 39 failures!

Tasks: TOP => testlinks
(See full trace by running task with --trace)
Running after_script
Uploading artifacts for failed job
ERROR: Job failed: exit code 1