[yelp] Update appdata file so it passes checks

[Shaun McCance <shaunm src gnome org>]

commit 3aebf866b96229b6a6c2c4b5b7fb12916fc9fe6e
Author: Shaun McCance <shaunm gnome org>
Date:   Sat Aug 21 19:41:45 2021 -0400

    Update appdata file so it passes checks

 configure.ac             | 1 +
 data/yelp.appdata.xml.in | 4 ++++
 2 files changed, 5 insertions(+)
---
diff --git a/configure.ac b/configure.ac
index 28cf8e5c..273db40a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,5 @@
 AC_PREREQ([2.63])
+# Reminder: add some release notes to data/yelp.appdata.xml.in on major releases
 AC_INIT([Yelp],[41.beta],[http://bugzilla.gnome.org/enter_bug.cgi?product=yelp],[yelp])
 
 AC_CONFIG_AUX_DIR([build-aux])
diff --git a/data/yelp.appdata.xml.in b/data/yelp.appdata.xml.in
index 41742d27..f1556515 100644
--- a/data/yelp.appdata.xml.in
+++ b/data/yelp.appdata.xml.in
@@ -1,5 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <component type="desktop">
+  <releases>
+    <release version="40" timestamp="2020-03-20"/>
+  </releases>
   <id>yelp.desktop</id>
   <metadata_license>CC0-1.0</metadata_license>
   <project_license>GPL-2.0+</project_license>
@@ -22,6 +25,7 @@
   <screenshots>
     <screenshot 
type="default">https://wiki.gnome.org/Apps/Yelp?action=AttachFile&amp;do=get&amp;target=yelp_screenshot.png</screenshot>
   </screenshots>
+  <content_rating type="oars-1.1" />
   <url type="homepage">https://wiki.gnome.org/Apps/Yelp</url>
   <updatecontact>gnome-doc-devel-list gnome org</updatecontact>
   <project_group>GNOME</project_group>