Enable HTML tabs in output pages. This is initially for use differentiating virtual
from bare-metal instructions in a consolidated Install doc. Since virtual content is
currently StarlingX-only, content must be conditionalized as in:
.. present tabbed content choice to StarlingX builds
.. only:: virtual
.. tabs::
.. tab:: Virtual
Apples are green, or sometimes red.
.. tab:: Bare Metal
.. bare-metal-pear-begin
Pears are green.
.. bare-metal-pear-end
.. Present bare-metal only to non-StarlingX builds as non-tabbed content
.. only:: partner
.. include:: this-file.rst
:start-after: bare-metal-pear-begin
:end-before: bare-metal-pear-end
Signed-off-by: Ron Stone <ronald.stone@windriver.com>
Change-Id: Ib65cf59f510e685a82c3d1ab046cb656d0f2fba1
ce3ba6d4d8