Contributing to zeroinstall.de catalog

Hello!

My name is Konstantin Dmitriev, I am new here.
I would like to contribute to zeroinstall.de feeds - add the latest
versions of Blender.

I have already downloaded two repositories from github -
"0install.de-feeds" and "0install.de-tenplates". I have used
"0template" to generate "Blender-2.77.xml" feed for single new
version. My question: what is supposed to be correct way to merge
"Blender-2.77.xml" into "0install.de-feeds/Blender.xml"?

Best Regards,
Konstantin

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