[PATCH 1/1] doc: correct title of CONTRIBUTE.rst

[Heinrich Schuchardt]

The title should be 'Contributing' as this is not the 'Overview' of the
U-Boot project.

The top title should be H1, the other titles H2.

Fixes: 0290cec364f6 ("Add an initial CONTRIBUTE.rst")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt at canonical.com>
---
 doc/CONTRIBUTE.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/doc/CONTRIBUTE.rst b/doc/CONTRIBUTE.rst
index 8ccb3a193da..a47dfdca221 100644
--- a/doc/CONTRIBUTE.rst
+++ b/doc/CONTRIBUTE.rst
@@ -1,8 +1,8 @@
 .. SPDX-License-Identifier: GPL-2.0+
 .. sectionauthor:: Peter Robinson <pbrobinson at gmail.com>
 
-Overview
---------
+Contributing
+============
 
 This document is a high level contributors overview setting overall expectations,
 so people can get started quickly, the rest of the documentation goes into the
-- 
2.53.0