ship appdata file

[muelli]

I'm targetting a release on Flathub and It'd be nice if an appdata file could be maintained upstream. Here's an attempt:

<?xml version="1.0" encoding="UTF-8"?>
<component type="desktop">
    <id>net.granjow.slowmovideo</id>
    <launchable type="desktop-id">net.granjow.slowmovideo.desktop</launchable>
    <name>slomoVideo</name>
    <developer_name>Simon A. Eugster</developer_name>
    <project_license>GPL-3.0</project_license>
    <metadata_license>CC0-1.0</metadata_license>
    <summary>slowmoVideo is an OpenSource program that creates slow-motion videos from your footage.</summary>
    <description>
        But it does not simply make your videos play at 0.01x speed. You can smoothly slow down and speed up your footage, optionally with motion blur.
        
    How does slow motion work? slowmoVideo tries to find out where pixels move in the video (this information is called Optical Flow), and then uses this information to calculate the additional frames between the ones recorded by your camera.</description>
    <url type="homepage">http://slowmovideo.granjow.net/</url>
  <content_rating type="oars-1.1" />
    <screenshots>
        <screenshot type="">
            <image type="source" width="622" height="452">http://slowmovideo.granjow.net/pngGUI/newProject.png</image>
            <image type="source" width="821" height="722">http://slowmovideo.granjow.net/pngGUI/simpleCurveAnnotated.png</image>
            <image type="source" width="773" height="332">http://slowmovideo.granjow.net/pngGUI/bezierCurve.png</image>
        </screenshot>
    </screenshots>
    <releases>
        <release version="v0.6" date="2020-04-12">
            <description/>
        </release>
    </releases>
</component>

[Granjow]

Hi @muelli , could you submit a PR for this change? (Please re-indent the file beforehand :))

Thanks!

[muelli]

No, sorry, I don't have the skills to do that.