doc: usage: Update the extension command title

Update the extension command title for consistency with other commands.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

diff --git a/doc/usage/cmd/extension.rst b/doc/usage/cmd/extension.rst
index 2b88398b18b93355f910c6472a36c99fbed2aa43..6366cf56e72f6ce2352e6587fff1b73f33f09eef 100644 (file)
--- a/doc/usage/cmd/extension.rst
+++ b/doc/usage/cmd/extension.rst
@@ -1,8 +1,8 @@
 .. SPDX-License-Identifier: GPL-2.0+
 .. Copyright 2021, Kory Maincent <kory.maincent@bootlin.com>
 
-U-Boot extension board usage (CONFIG_EXTENSION)
-===============================================
+extension command
+=================
 
 Synopsis
 --------