[PATCH] docs: networking: fix x25-iface.rst heading & index order

Fix the chapter heading for "X.25 Device Driver Interface" so that it
does not contain a trailing '-' character, which makes Sphinx
omit this heading from the contents.

Reverse the order of the x25.rst and x25-iface.rst files in the index
so that the project introduction (x25.rst) comes first.

Fixes: 883780af7209 ("docs: networking: convert x25-iface.txt to ReST")
Signed-off-by: Randy Dunlap <[email protected]>
Cc: Mauro Carvalho Chehab <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Eric Dumazet <[email protected]>
Cc: Jakub Kicinski <[email protected]>
Cc: Paolo Abeni <[email protected]>
Cc: Jonathan Corbet <[email protected]>
Cc: [email protected]
Cc: Martin Schiller <[email protected]>
Cc: [email protected]
---
 Documentation/networking/index.rst     |    2 +-
 Documentation/networking/x25-iface.rst |    3 +--
 2 files changed, 2 insertions(+), 3 deletions(-)

diff -- a/Documentation/networking/index.rst b/Documentation/networking/index.rst
--- a/Documentation/networking/index.rst
+++ b/Documentation/networking/index.rst
@@ -116,8 +116,8 @@ Contents:
    udplite
    vrf
    vxlan
-   x25-iface
    x25
+   x25-iface
    xfrm_device
    xfrm_proc
    xfrm_sync
diff -- a/Documentation/networking/x25-iface.rst b/Documentation/networking/x25-iface.rst
--- a/Documentation/networking/x25-iface.rst
+++ b/Documentation/networking/x25-iface.rst
@@ -1,8 +1,7 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-============================-
 X.25 Device Driver Interface
-============================-
+============================
 
 Version 1.1