Merge branch 'fio-docs-ci' of https://github.com/vincentkfu/fio
* 'fio-docs-ci' of https://github.com/vincentkfu/fio:
windows: update the installer build for renamed files
ci: install sphinx packages and add doc building to GitHub Actions
HOWTO: combine two chunk_size listings into a single one
HOWTO: combine separate hipri listings into a single one
HOWTO: combine multiple pool option listings
docs: rename HOWTO to HOWTO.rst
docs: update Makefile in order to detect build failures
docs: document cpumode option for the cpuio ioengine