Run sphinx-builder with -W (fail on error), --keep-going, and -j auto.
Auto-job scaling speeds up sphinx-builder a LOT.
Add make lint target to doc/Makefile. The -E and -a option ensure that
all files are always re-read and rewritten.
Add option to run sphinx-builder from a virtual env that mimics RTD
builds closer than Fedora packages.
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: François Cami <fcami@redhat.com>
ReadTheDocs.org engine assumes master document is 'contents.rst', we use
'index.rst'. Specify the master document explicitly.
Signed-off-by: Alexander Bokovoy <abokovoy@redhat.com>
