Make README less melodramatic

Author: Pithikos

README.md

@@ -12,7 +12,7 @@ Notice that this implementation does not support the more advanced features
 like SSL etc. The project is focused mainly on making it easy to run a
 websocket server for prototyping, testing or for making a GUI for your application.
 
-If this project reduced your development time please show your appreciation.
+If this project reduced your development time feel free to buy me a coffee.
 
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