docs/kbuild/makefiles: fix header underline

The "Kbuild syntax for exported headers" section should not be under
"Architecture Makefiles" in hierarchy. Bump the header underline from
"-" to "=".

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

diff --git a/Documentation/kbuild/makefiles.rst b/Documentation/kbuild/makefiles.rst
index 82363218d0d1940e7c0e5834e8a666bcd3d8957e..c139fff29362e5ea33a5037435aceec67b5d5cdb 100644 (file)
--- a/Documentation/kbuild/makefiles.rst
+++ b/Documentation/kbuild/makefiles.rst
@@ -1509,7 +1509,7 @@ When kbuild executes, the following steps are followed (roughly):
        the linked vmlinux file.
 
 8 Kbuild syntax for exported headers
-------------------------------------
+====================================
 
 The kernel includes a set of headers that is exported to userspace.
 Many headers can be exported as-is but other headers require a