[PATCH] docs: Set upper limit of docutils (<0.17)

[Akira Yokosawa]

sphinx_rtd_theme 0.5.2 has "docutils<0.17" in its requirements.
docutils 0.17 was released this April and caused regression in
sphinx_rtd_theme 0.5.1 [1].
Put the same limit in sphinx/requirements.txt.

[1]: https://github.com/readthedocs/sphinx_rtd_theme/issues/1112

Signed-off-by: Akira Yokosawa <akiyks@xxxxxxxxx>
Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
---
 Documentation/sphinx/requirements.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/sphinx/requirements.txt b/Documentation/sphinx/requirements.txt
index 489f6626de67..f8974875c0ec 100644
--- a/Documentation/sphinx/requirements.txt
+++ b/Documentation/sphinx/requirements.txt
@@ -1,3 +1,3 @@
-docutils
+docutils<0.17
 Sphinx==2.4.4
 sphinx_rtd_theme
-- 
2.17.1