Updated sponsors list

Author: s1hofmann

README.md

@@ -42,7 +42,7 @@ A huge **"Thank you!"** goes out to all sponsors who make open source a bit more
 
 [<img src="https://avatars.githubusercontent.com/u/17616211?v=4" width="75" alt="Reiss Cashmore" />](https://github.com/Reiss-Cashmore)
 [<img src="https://avatars.githubusercontent.com/u/1794527?v=4" width="75" alt="Chet Corcos" />](https://github.com/ccorcos)
-[<img src="https://avatars.githubusercontent.com/u/562800?v=4" width="75" alt="Stephan Petzl" />](https://github.com/stoefln)
+[<img src="https://avatars.githubusercontent.com/u/4453806?v=4" width="75" alt="Patrick Flor" />](https://github.com/senorflor)
 
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