drop node 6, 8, and 10 support

Author: wheresvic

README.md

@@ -251,7 +251,7 @@ Feel free to make changes to the default docker configuration as required.
 
 ### 6.0.0
 
-- _BREAKING:_ Drop Node 6 and node 8 support
+- _BREAKING:_ Drop Node 6, Node 8 & Node 10 support. Note that the library should still work for node 6, 8 and 10 however it is not actively tested and supported anymore.
 
 ### 5.0.1, 5.0.2, 5.0.3