docs: filesystems: convert btrfs.txt to ReST

Just trivial changes:

- Add a SPDX header;
- Add it to filesystems/index.rst.

While here, adjust document title, just to make it use the same
style of the other docs.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: David Sterba <dsterba@suse.com>
Link: https://lore.kernel.org/r/1ef76da4ac24a9a6f6187723554733c702ea19ae.1581955849.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Mauro Carvalho Chehab 2020-02-17 17:11:54 +01:00 committed by Jonathan Corbet
parent ee68f34d7e
commit 5d43e1bc2d
2 changed files with 4 additions and 0 deletions

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@ -1,3 +1,6 @@
.. SPDX-License-Identifier: GPL-2.0
=====
BTRFS
=====

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@ -54,6 +54,7 @@ Documentation for filesystem implementations.
autofs-mount-control
befs
bfs
btrfs
fuse
overlayfs
virtiofs