[gnome-photos/gnome-3-32] appdata: Add release notes for Flathub

[Debarshi Ray <debarshir src gnome org>]

commit 9dd421b6dae7e14b5be8e2a9fad10f6d7991daad
Author: Umang Jain <mailumangjain gmail com>
Date:   Mon Apr 1 10:51:55 2019 +0530

    appdata: Add release notes for Flathub
    
    See:
    https://blogs.gnome.org/hughsie/2019/03/28/new-appstream-validation-requirements/
    
    Some changes by Debarshi Ray.
    
    https://gitlab.gnome.org/GNOME/gnome-photos/merge_requests/101

 data/org.gnome.Photos.appdata.xml.in | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
---
diff --git a/data/org.gnome.Photos.appdata.xml.in b/data/org.gnome.Photos.appdata.xml.in
index ab972f11..71fd7fee 100644
--- a/data/org.gnome.Photos.appdata.xml.in
+++ b/data/org.gnome.Photos.appdata.xml.in
@@ -33,6 +33,29 @@
     <kudo>SearchProvider</kudo>
     <kudo>UserDocs</kudo>
   </kudos>
+  <releases>
+    <release version="3.32.0" date="2019-03-18">
+      <description>
+        <ul>
+          <li>Don't attempt to load items from non-UTF-8 paths</li>
+          <li>Remove the application menu</li>
+          <li>Start adding some unit tests</li>
+          <li>Update the application icon for the GNOME 3.32 icon redesign</li>
+        </ul>
+      </description>
+    </release>
+    <release version="3.30.0" date="2018-09-06">
+      <description>
+        <ul>
+          <li>Delete *.gnome-photos files with XML depicting an empty GEGL graph</li>
+          <li>Launch Settings in a Flatpak-friendly way</li>
+          <li>Port to the Meson build system</li>
+          <li>Reduce memory fragmentation in ImageView</li>
+          <li>Unbreak the "Empty Trash" button on GNOME >= 3.24</li>
+        </ul>
+      </description>
+    </release>
+  </releases>
   <screenshots>
     <screenshot type="default">
       <image type="source">https://static.gnome.org/appdata/gnome-photos/gnome-photos-1.png</image>