docs: filesystems: add overlayfs to index.rst

Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

kernel os linux

While the document is there, it is currently missing at the
index file.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/3b8e7783b1fcc71e4f94af5ea8e5fa264392f8c4.1580193653.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

authored by

Mauro Carvalho Chehab and committed by

Jonathan Corbet 6 years ago 77ce1a47 1edca3c6

1 changed file

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Documentation

filesystems

index.rst

Documentation/filesystems/index.rst

··· 47 47 :maxdepth: 2 48 48 49 49 autofs 50 + overlayfs 50 51 virtiofs 51 52 vfat