[gnome-boxes/update-app-description] appdata: Update description text

[Felipe Borges <felipeborges src gnome org>]

commit 4fff0eb5413be96bbdf7e0bd7f190e99896db14f
Author: Felipe Borges <felipeborges gnome org>
Date:   Tue Dec 21 20:34:07 2021 +0100

    appdata: Update description text
    
    I have based this update on:
    - https://developer.gnome.org/hig/guidelines/writing-style.html
    - https://gitlab.gnome.org/GNOME/Initiatives/-/wikis/App-Metadata/#name
    - https://twitter.com/DanielFore/status/1457489643536994313
    - https://www.freedesktop.org/software/appstream/docs/chap-Metadata.html#tag-description

 data/org.gnome.Boxes.appdata.xml.in | 28 ++++++++++++++++++----------
 1 file changed, 18 insertions(+), 10 deletions(-)
---
diff --git a/data/org.gnome.Boxes.appdata.xml.in b/data/org.gnome.Boxes.appdata.xml.in
index 267707ae..777185ae 100644
--- a/data/org.gnome.Boxes.appdata.xml.in
+++ b/data/org.gnome.Boxes.appdata.xml.in
@@ -8,17 +8,25 @@
   <summary>Virtualization made simple</summary>
   <description>
     <p>
-      A simple GNOME 3 application to manage virtual systems. Unlike
-      some other virtual machine management software, Boxes is targeted towards
-      typical desktop end-users. For this reason, Boxes will not provide many
-      advanced options to tweak virtual machines. Instead Boxes will focus on
-      getting things working out of the box with very little input from user.
-    </p>
-    <p>
-      You want to install Boxes if you just want a very safe and easy way to try
-      out new operating systems or new (potentially unstable) versions of your
-      favorite operating system(s).
+      Select an operating system and let Boxes download and install it for you
+      in a virtual machine.
     </p>
+
+    <p>Features:</p>
+    <ul>
+      <li>Download freely available operating systems.</li>
+      <li>Automatically install CentOS Stream, Debian, Fedora, Microsoft Windows, OpenSUSE, Red
+      Hat Enterprise Linux, and Ubuntu.</li>
+      <li>Create virtual machines from operating system images with a couple of clicks.</li>
+      <li>Limit the resources (CPU, RAM and storage) your virtual machines consume from your system.</li>
+      <li>3D acceleration for some of the supported operating systems.</li>
+      <li>Take snapshots of virtual machines to restore to previous states.</li>
+      <li>Redirect USB devices from your physical machine into virtual machines.</li>
+      <li>Automatically resize virtual machines displays to the window size.</li>
+      <li>Share clipboard between your system and virtual machines.</li>
+      <li>Share files to virtual machines by dropping them from your file manager into the Boxes window.</li>
+      <li>Setup Shared Folders between your system and virtual machines.</li>
+    </ul>
   </description>
   <screenshots>
     <screenshot height="1600" width="900" type="default">