[librsvg/librsvg-2.48] Update NEWS

[Federico Mena Quintero <federico src gnome org>]

commit a0ab5e47d81b5a4f83ec457dd40b777a25e8816a
Author: Federico Mena Quintero <federico gnome org>
Date:   Fri Mar 27 19:35:56 2020 -0600

    Update NEWS

 NEWS | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
---
diff --git a/NEWS b/NEWS
index 02061be1..1b527ac1 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,17 @@
+Version 2.48.1
+
+- #129 - Fix baseline-shift for simple subscripts/superscripts and
+  absolute offsets.  This should fix a lot of Wikimedia images with
+  formulas.
+
+- #548 - Support images with data: URLs that don't have a MIME-type.
+  This fixes some Open Clip Art images generated by old versions
+  of Adobe Illustrator.
+
+- Fix build of the test suite on Windows (Chun-wei Fan).
+
+- Support running the rsvg_internals tests on Windows (Chun-wei Fan).
+
 Version 2.48.0
 
 - The following is a summary of changes between 2.46.x and 2.48.0.