[librsvg] Update NEWS

[Federico Mena Quintero <federico src gnome org>]

commit 261298475d8c65b947e1a1621680e94365d6041a
Author: Federico Mena Quintero <federico gnome org>
Date:   Wed Jan 15 17:25:35 2020 -0600

    Update NEWS

 NEWS | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
---
diff --git a/NEWS b/NEWS
index e4a227df..d7bc38f5 100644
--- a/NEWS
+++ b/NEWS
@@ -6,6 +6,27 @@ Version 2.47.2
   "initial", and "unset" are disallowed.  Most SVGs should still work
   fine.
 
+- #542 - Fix infinite loop when processing CSS sibling combinators.
+
+- #408 - feImage filters no longer clip their output to integer
+  coordinates.
+
+- #504 - Documentation for the Rust crate (available at
+  https://gnome.pages.gitlab.gnome.org/librsvg/doc/librsvg/) now has
+  API usage examples.
+
+- Debug logs from RSVG_LOG=1 should now be more legible and contain
+  better information on invalid CSS.
+
+- Remove link-time workarounds for Rust pre-1.35 (Kleis Auke Wolthuizen).
+
+- Unify internal error types to share the CSS code with gnome-shell.
+
+- Made handling of XML namespaces more spec-compliant.
+
+- Lots of refactoring to start moving away from Cairo internals
+  (Paolo Borelli).
+
 Version 2.47.1
 
 - Librsvg no longer depends on libcroco!  It now does all CSS