[gimp/gimp-2-10] desktop: update appdata with date and additional release note items.

[Jehan <jehanp src gnome org>]

commit dd9a426fa48fd1db8f5e50340933a1010f9b74a9
Author: Jehan <jehan girinstud io>
Date:   Sun Oct 4 18:52:25 2020 +0200

    desktop: update appdata with date and additional release note items.
    
    This commit should have gone in master first, but appdata already
    diverged in both gimp-2-10 and master branch. I'll sync again later.

 desktop/org.gimp.GIMP.appdata.xml.in.in | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)
---
diff --git a/desktop/org.gimp.GIMP.appdata.xml.in.in b/desktop/org.gimp.GIMP.appdata.xml.in.in
index e7f1770377..67e81dff5d 100644
--- a/desktop/org.gimp.GIMP.appdata.xml.in.in
+++ b/desktop/org.gimp.GIMP.appdata.xml.in.in
@@ -73,8 +73,8 @@
   </provides>
 
   <releases>
-    <release version="2.10.22" date="2020-08-30">
-      <url type="details">https://www.gimp.org/news/2020/08/23/gimp-2-10-22-released/</url>
+    <release version="2.10.22" date="2020-10-04">
+      <url type="details">https://www.gimp.org/news/2020/10/04/gimp-2-10-22-released/</url>
       <description>
         <_p>
           GIMP 2.10.22 is mainly a bug fix release. Notable changes:
@@ -87,6 +87,12 @@
           <_li>
             Multiple improvements in Corel PaintShop Pro support
           </_li>
+          <_li>
+            "Sample merged" now available in GEGL operation tool options
+          </_li>
+          <_li>
+            "Sample merged" is now enabled by default for color picking
+          </_li>
           <_li>
             The option enabling OpenCL support has been moved to the
             Playground tab in Preferences
@@ -95,6 +101,12 @@
             Matting Levin is now the default engine of Foreground Select
             tool as it performs a lot better
           </_li>
+          <_li>
+            New progressive performance logs and dashboard updates
+          </_li>
+          <_li>
+            Verbose debug now shows Flatpak info when relevant
+          </_li>
           <_li>
             Various bug fixes
           </_li>