Add doc/requirements
We need to specify doc requirements in doc/requirements.txt
to avoid problems with the pip resolver for the release team.
Removed specific doc requirements from test-requirements.txt
Change-Id: Ia88848fd9c4ce35d396bc186ae3894a1d5865db9
diff --git a/doc/requirements.txt b/doc/requirements.txt
new file mode 100644
index 0000000..6fe7c34
--- /dev/null
+++ b/doc/requirements.txt
@@ -0,0 +1,4 @@
+reno>=3.1.0 # Apache-2.0
+sphinx>=2.0.0,!=2.1.0 # BSD
+openstackdocstheme>=2.2.1 # Apache-2.0
+