In Ib226cbf9fc1fb7d3146083d65c44d8e0b80e2a7b we were introduced the doc8
check, but the configuration in cyborg/tox.ini is incorrect. This patch
will combine the doc8 check in [testenv:docs] to fix 'tox -e doc8' error.
Story: 2008084
Task: 40785
Change-Id: I9eb30de1407022a31086caab265e5e51e3d06bf9
Current cyborg-specs has no check for trailing whitespace, which is
found in patch[0]. Trailing whitespace is a big deal,we should avoid
that. This patch:
1. added doc8 check
2. fixed doc8 failures caused by previous merged specs
[0]:https://review.opendev.org/#/c/699099/7/specs/ussuri/policy-defaults-refresh.rst
Change-Id: Ib226cbf9fc1fb7d3146083d65c44d8e0b80e2a7b