add doc generation support

we're missing sphinx requirements that are blocking doc tests. this
patch adds this in so we can pass check

Change-Id: Ieba4da849ce8abea10a3298df23a0b2145a0bd2e

1 files changed, 3 insertions, 0 deletions

diff --git a/tox.ini b/tox.ini
index 14befe5..eabaf32 100644
--- a/tox.ini
+++ b/tox.ini
@@ -22,6 +22,9 @@ commands = flake8
 [testenv:venv]
 commands = {posargs}
 
+[testenv:docs]
+commands = python setup.py build_sphinx
+
 [testenv:cover]
 commands = python setup.py testr --coverage --testr-args='{posargs}'