[PATCH] migration-guides/migration-4.2.rst: fix minor issues

[michael.opdenacker@bootlin.com]

From: Michael Opdenacker <michael.opdenacker@bootlin.com>

- Underline fix
- Spacing fixes in bullet lists. Our standard
  is to use two spaces after "-", and a bullet
  list is supposed to be preceded by an empty line
  to be recognized.

Signed-off-by: Michael Opdenacker <michael.opdenacker@bootlin.com>
---
 documentation/migration-guides/migration-4.2.rst | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/documentation/migration-guides/migration-4.2.rst b/documentation/migration-guides/migration-4.2.rst
index 944ad31a4c..1339411b3e 100644
--- a/documentation/migration-guides/migration-4.2.rst
+++ b/documentation/migration-guides/migration-4.2.rst
@@ -12,7 +12,7 @@ Project 4.2 Release (codename "mickledore") from the prior release.
 .. _migration-4.2-python-3.8:
 
 Python 3.8 is now the minimum required Python version version
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~------------
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 BitBake and OpenEmbedded-Core are now relying on Python 3.8,
 making it a requirement to use a distribution providing at least this
@@ -28,8 +28,8 @@ QA check changes
 Miscellaneous changes
 ~~~~~~~~~~~~~~~~~~~~~
 
-- The ``OEBasic`` signature handler (see :term:`BB_SIGNATURE_HANDLER`) has been
-  removed.
+-  The ``OEBasic`` signature handler (see :term:`BB_SIGNATURE_HANDLER`) has been
+   removed.
 
 .. _migration-4.2-removed-variables:
 
@@ -37,7 +37,8 @@ Removed variables
 ~~~~~~~~~~~~~~~~~
 
 The following variables have been removed:
-- ``SERIAL_CONSOLE``, deprecated since version 2.6, replaced by :term:``SERIAL_CONSOLES``.
+
+-  ``SERIAL_CONSOLE``, deprecated since version 2.6, replaced by :term:``SERIAL_CONSOLES``.
 
 .. _migration-4.2-removed-recipes:
 
-- 
2.37.2