Documentation: sphinx: replace "Introduction" chapter heading with page title

Replace first chapter heading ("Introduction") with page title named
"Using Sphinx for kernel documentation". This way, the first-level TOC
for doc-guide contains title instead of chapter headings for this page.

Cc: Jonathan Corbet <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Tony Nguyen <[email protected]>
Cc: Vinod Koul <[email protected]>
Cc: Daniel Borkmann <[email protected]>
Cc: Mauro Carvalho Chehab <[email protected]>
Cc: Akira Yokosawa <[email protected]>
Cc: "Rafael J. Wysocki" <[email protected]>
Cc: Jens Axboe <[email protected]>
Cc: [email protected]
Reviewed-by: Mauro Carvalho Chehab <[email protected]>
Signed-off-by: Bagas Sanjaya <[email protected]>
Signed-off-by: Jonathan Corbet <[email protected]>

1 files changed, 3 insertions, 2 deletions

diff --git a/Documentation/doc-guide/sphinx.rst b/Documentation/doc-guide/sphinx.rst
index bb36f18ae9ac..2ff1ab4158d4 100644
--- a/Documentation/doc-guide/sphinx.rst
+++ b/Documentation/doc-guide/sphinx.rst
@@ -1,7 +1,8 @@
 .. _sphinxdoc:
 
-Introduction
-============
+=====================================
+Using Sphinx for kernel documentation
+=====================================
 
 The Linux kernel uses `Sphinx`_ to generate pretty documentation from
 `reStructuredText`_ files under ``Documentation``. To build the documentation in