Update .htmltest.yml (#1533)
Update .htmltest.yml (#1533)

* Update .htmltest.yml

Update to ignore broken external links

* Update .htmltest.yml

correct setting this time :)

* Update .htmltest.yml

newtheatre/history-project,newtheatre/history-project,newtheatre/history-project,newtheatre/history-project,newtheatre/history-project