Update README.md

Author: ricky-shake-n-bake-bobby

README.md

@@ -8,7 +8,7 @@ Send and receive faxes in Java with the [InterFAX](https://www.interfax.net/en/d
 
 ## Installation
 
-Use of the library requires Java 13 or higher and can be done via one of the following approaches. 
+Use of the library requires Java 11 or higher and can be done via one of the following approaches. 
 
 ### Include as maven dependency