[gnome-builder] appdata: update our AppData description to pass check

[Christian Hergert <chergert src gnome org>]

commit 01d1540ffdefabe8a32ab86d2dc1e367c1fe85cc
Author: Christian Hergert <christian hergert me>
Date:   Thu Apr 28 01:48:16 2016 -0700

    appdata: update our AppData description to pass check

 data/org.gnome.Builder.appdata.xml.in |   15 +++++++++++----
 1 files changed, 11 insertions(+), 4 deletions(-)
---
diff --git a/data/org.gnome.Builder.appdata.xml.in b/data/org.gnome.Builder.appdata.xml.in
index df881bb..ee4ea04 100644
--- a/data/org.gnome.Builder.appdata.xml.in
+++ b/data/org.gnome.Builder.appdata.xml.in
@@ -14,16 +14,23 @@
       such as GTK+, GLib, and GNOME APIs with features that any developer will
       appreciate, like syntax highlighting and snippets.
     </_p>
+    <_p>
+      You can rely on predictable releases of Builder with each new release of
+      GNOME every six months.
+    </_p>
     <_p>Features:</_p>
     <ul>
+      <_li>Built in syntax highlighting for many languages</_li>
+      <_li>Side-by-side code editors</_li>
+      <_li>Integration with Git</_li>
       <_li>Integration with Autotools</_li>
       <_li>Clang based auto-completion, semantic highlighting, and diagnostics</_li>
-      <_li>Auto indentation</_li>
-      <_li>Side-by-side code editors</_li>
-      <_li>Syntax highlighting</_li>
+      <_li>Python based auto-completion, semantic highlighting, and diagnostics</_li>
+      <_li>Vala based auto-completion and diagnostics</_li>
+      <_li>Auto indentation support for C, Python, Vala, and XML</_li>
       <_li>HTML/Markdown live preview</_li>
       <_li>Optional Vim-style editing</_li>
-      <_li>Integration with Git</_li>
+      <_li>Preview support for building with Xdg-App runtimes</_li>
     </ul>
   </description>