remember sbt version

Author: nickfun

README.md

@@ -6,6 +6,8 @@ Conways game of life implemented in Java. It's a simple project to teach myself
 Running
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+I use sbt v1.4.5
+
 use `sbt package` and it will create a jar file in the target fold.
 
 Then you can run it with `java -jar target/game-of-life-0.1.jar`