[DOC] Add bounds to sphinx requirement

As ONAP was created before Oct 20 2020 in RTD, we
must set bounds to enforce a compatible Sphinx version
(see manual).

Issue-ID: DOC-782

Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>
Change-Id: Icc0f783e36473df0571056fc23461e48aaeb5ce6
(cherry picked from commit b308d06c3b6742a8ecb5ad99f17cd41a56e8ac7c)

diff --git a/requirements.txt b/requirements.txt
index f3d82da..554df85 100644 (file)
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,8 +1,9 @@
-Sphinx
+lfdocs-conf
+sphinx>=4.2.0  # BSD
+sphinx-rtd-theme>=1.0.0  # MIT
 doc8
 docutils
 six
-lfdocs-conf
 sphinxcontrib-redoc
 sphinxcontrib-spelling
 PyEnchant