[gnome-build-meta/appdata] Add a description to appdata

[Matthias Clasen <matthiasc src gnome org>]

commit b0d54bea159ddb47761edb4de492f2eabbbb35e4
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Nov 14 18:01:48 2018 -0500

    Add a description to appdata
    
    Without this, the runtime and sdk don't show up in
    GNOME Software, which confuses people.
    
    Closes: #99

 files/os-release/org.gnome.Platform.appdata.xml.in | 22 ++++++++++++++++++++++
 files/os-release/org.gnome.Sdk.appdata.xml.in      | 22 ++++++++++++++++++++++
 2 files changed, 44 insertions(+)
---
diff --git a/files/os-release/org.gnome.Platform.appdata.xml.in 
b/files/os-release/org.gnome.Platform.appdata.xml.in
index a3cb2ce..0bd9285 100644
--- a/files/os-release/org.gnome.Platform.appdata.xml.in
+++ b/files/os-release/org.gnome.Platform.appdata.xml.in
@@ -7,7 +7,29 @@
   <project_license>GPL-2.0+</project_license>
   <name>GNOME Application Platform version @@SDK_BRANCH@@</name>
   <summary>Shared libraries used by GNOME applications</summary>
+  <description>
+    <p>
+      The GNOME runtime is appropriate for any application that uses the
+      GNOME platform.
+      The runtime is layered on top of the Freedesktop runtime and adds the
+      GNOME platform, including:
+    </p>
+    <ul>
+      <li>Clutter</li>
+      <li>Gjs</li>
+      <li>GObject Introspection</li>
+      <li>GStreamer</li>
+      <li>GVFS</li>
+      <li>Libnotify</li>
+      <li>Libsecret</li>
+      <li>LibSoup</li>
+      <li>PyGObject</li>
+      <li>Vala</li>
+      <li>WebKitGTK</li>
+    </ul>
+  </description>
   <url type="homepage">http://www.gnome.org/</url>
   <project_group>GNOME</project_group>
+  <update_contact>richard hughsie com</update_contact>
 </component>
 
diff --git a/files/os-release/org.gnome.Sdk.appdata.xml.in b/files/os-release/org.gnome.Sdk.appdata.xml.in
index 562d828..f623a2b 100644
--- a/files/os-release/org.gnome.Sdk.appdata.xml.in
+++ b/files/os-release/org.gnome.Sdk.appdata.xml.in
@@ -7,7 +7,29 @@
   <project_license>GPL-2.0+</project_license>
   <name>GNOME Software Development Kit version @@SDK_BRANCH@@</name>
   <summary>Tools and headers for developing applications using the GNOME application platform</summary>
+  <description>
+    <p>
+      The GNOME runtime is appropriate for any application that uses the
+      GNOME platform. This SDK is used to build applications that use this runtime.
+      The runtime is layered on top of the Freedesktop runtime and adds the
+      GNOME platform, including:
+    </p>
+    <ul>
+      <li>Clutter</li>
+      <li>Gjs</li>
+      <li>GObject Introspection</li>
+      <li>GStreamer</li>
+      <li>GVFS</li>
+      <li>Libnotify</li>
+      <li>Libsecret</li>
+      <li>LibSoup</li>
+      <li>PyGObject</li>
+      <li>Vala</li>
+      <li>WebKitGTK</li>
+    </ul>
+  </description>
   <url type="homepage">http://www.gnome.org/</url>
   <project_group>GNOME</project_group>
+  <update_contact>richard hughsie com</update_contact>
 </component>