docs: Correct formatting of title in admin-guide/index.rst

Adjust the title of "The Linux kernel user's and administrator's guide" to
adhere to the expected reStructuredText (rst) formatting, using double
equal signs for the main header.

Signed-off-by: Carlos Bilbao <carlos.bilbao@amd.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20240109155643.3489369-2-carlos.bilbao@amd.com

diff --git a/Documentation/admin-guide/index.rst b/Documentation/admin-guide/index.rst
index fb40a1f6f79e18d85ddb1ff254c9a04fed9ade2b..ed8a629e59c86aba4805a5ed319d79e53e73c4c1 100644 (file)
--- a/Documentation/admin-guide/index.rst
+++ b/Documentation/admin-guide/index.rst
@@ -1,3 +1,4 @@
+=================================================
 The Linux kernel user's and administrator's guide
 =================================================