[librsvg: 2/3] Update NEWS

[Marge Bot <marge-bot src gnome org>]

commit 79246efc4bf4badbd92b25d08e462da4d2da9d9e
Author: Federico Mena Quintero <federico gnome org>
Date:   Fri Apr 22 19:54:17 2022 -0500

    Update NEWS
    
    Part-of: <https://gitlab.gnome.org/GNOME/librsvg/-/merge_requests/690>

 NEWS | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
---
diff --git a/NEWS b/NEWS
index 342893cae..7cf1f2b3b 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,17 @@
+==============
+Version 2.54.1
+==============
+
+This release just has some build-time fixes.
+
+- Fix oversight in the Minimum Supported Rust Version (MSRV) - this
+  release requires Rust 1.56 or later.  This has been true since
+  librsvg 2.53.1, but it was not checked correctly. (Matt Turner)
+
+- #859 - Make rst2man and gi-docgen optional. (Kleis Auke Wolthuizen)
+
+- #856 - Fix documentation comments.
+
 ==============
 Version 2.54.0
 ==============