Enable compilation of docs w/o latex

4 jobs for issue-16 in 3 minutes and 28 seconds (queued for 8 seconds)
Status Job ID Name Coverage
  Build
canceled #123988
docker
build_linux_27

00:03:27

canceled #123989
docker
build_linux_36

00:03:27

canceled #123990
macosx
build_macosx_27

00:03:28

canceled #123991
macosx
build_macosx_36

00:03:28