[LyX/master] Release notes

[Richard Kimberly Heck]

commit 8bc01d304a76ba0da448ec3c6e85e6d84c280797
Author: Richard Kimberly Heck <rikiheck at lyx.org>
Date:   Sun Aug 2 23:25:48 2020 -0400

    Release notes
---
 lib/RELEASE-NOTES |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/lib/RELEASE-NOTES b/lib/RELEASE-NOTES
index b8530ab..40abf2a 100644
--- a/lib/RELEASE-NOTES
+++ b/lib/RELEASE-NOTES
@@ -14,6 +14,8 @@
   while noting that menu shortcuts can always be customized by copying the
   stdmenus.inc file to the user directory and editing it.
 
+* Backspace will now merge paragraphs even when they have different layouts.
+
 
 !!Documents compilation process and images conversion