Update cerone.md

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Status Name Job ID Coverage
  Build
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docker

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  Deploy
failed deadlinks #485575
docker allowed to fail

00:01:15

passed deploy #485576
docker

00:00:26

 
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 38 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