updated isolation recommendation list
Updates isolation recommendation list, in accordance with https://indico.cern.ch/event/884304/contributions/3726269/attachments/1980033/3296923/20200203_IFFIntro.pdf
GitLab jobs artifacts no longer stored forever as of Monday, November 4th 08:30h. Further information under https://cern.ch/otg0152576
Updates isolation recommendation list, in accordance with https://indico.cern.ch/event/884304/contributions/3726269/attachments/1980033/3296923/20200203_IFFIntro.pdf