Fixed yaml issue

4 jobs for docs in 4 minutes and 40 seconds (queued for 4 seconds)
Status Job ID Name Coverage
  Build
passed #165481
docker
build_linux_36

00:03:33

passed #165482
docker
build_linux_37

00:02:45

passed #165483
macosx
build_macosx_36

00:04:40

passed #165484
macosx
build_macosx_37

00:04:35