[PATCH 6/6] Documentation: f2fs: Reword title

[Bagas Sanjaya <bagasdotme@gmail.com>]

"What is F2FS" is rather a mistitle for the whole f2fs docs, as it
implies the overview section (before "Background and design issues"
section) and the docs covers beyond that: from mount options to
filesystem implementation details.

Retitle and add explicit overview section.

Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
---
 Documentation/filesystems/f2fs.rst | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/Documentation/filesystems/f2fs.rst b/Documentation/filesystems/f2fs.rst
index 146511d63b684e..10504f774e1dff 100644
--- a/Documentation/filesystems/f2fs.rst
+++ b/Documentation/filesystems/f2fs.rst
@@ -1,8 +1,11 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-==========================================
-WHAT IS Flash-Friendly File System (F2FS)?
-==========================================
+=================================
+Flash-Friendly File System (F2FS)
+=================================
+
+Overview
+========
 
 NAND flash memory-based storage devices, such as SSD, eMMC, and SD cards, have
 been equipped on a variety systems ranging from mobile to server systems. Since
-- 
An old man doll... just what I always wanted! - Clara