docs: cpu-freq: convert index.txt to ReST

most of the stuff there can be re-used with ReST format,
but we need to add an empty TOC and remove the existing
entries, as the following conversion patches will be re-adding
them, as they're converted.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Mauro Carvalho Chehab 2020-03-03 14:52:03 +01:00 • committed by Rafael J. Wysocki
commit 12bd112bf8
3 changed files with 36 additions and 56 deletions