add: readme with screenshot

README.md

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+ArtNet Signalprocessor LTP Merge DMX512 from ip-ranges into another ip adress range (Broadcast) used by LibreLight-Console, (Python3)
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+![LibreLightASPScreen](https://user-images.githubusercontent.com/98694752/152392485-10e004d0-b517-42e1-bcb0-1ea3ebefe6f6.png)