add requirements file for docs

17 jobs for master in 5 minutes and 47 seconds
Status Job ID Name Coverage
  Build
passed #53985
Linux
build-2.7-linux

00:01:23

passed #53986
Apple
build-2.7-macos

00:02:29

passed #53983
Linux
build-3.5-linux

00:01:26

passed #53984
Apple
build-3.5-macos

00:02:31

passed #53982
VS2017
build-3.6-VS2017

00:01:56

 
  Test
passed #53990
Linux
test-2.7-linux

00:00:07

passed #53991
Apple
test-2.7-macos

00:00:11

passed #53988
Linux
test-3.5-linux

00:00:08

passed #53989
Apple
test-3.5-macos

00:00:12

passed #53987
VS2017
test-3.6-VS2017

00:00:32

 
  Deploy
passed #53995
Linux
deploy-2.7-linux

00:00:01

passed #53996
Apple
deploy-2.7-macos

00:00:01

passed #53993
Linux
deploy-3.5-linux

00:00:01

passed #53994
Apple
deploy-3.5-macos

00:00:02

passed #53992
VS2017
deploy-3.6-VS2017

00:00:02

passed #53998
Linux
deploy-documentation

00:00:11

passed #53997
Linux
deploy-sdist

00:00:12