[LyX/master] Release notes

[Richard Kimberly Heck]

commit e6395fd4eefe84a72f6a281c43f50865198e2e2d
Author: Richard Kimberly Heck <rikiheck at lyx.org>
Date:   Mon Feb 15 11:04:57 2021 -0500

    Release notes
---
 lib/RELEASE-NOTES |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/lib/RELEASE-NOTES b/lib/RELEASE-NOTES
index c3b89d3..32d44aa 100644
--- a/lib/RELEASE-NOTES
+++ b/lib/RELEASE-NOTES
@@ -27,6 +27,9 @@
 * The shortcut for word-find on OSX is now Cmd-E, as is the Apple standard. The
   shortcut for word-find-previous is Cmd-G.
 
+* Continuous spellcheck is now on by default, but only if the user does not have
+  an existing preferences file. In that case, the old setting is preserved.
+
 
 !!Documents compilation process and images conversion