Infrastructure: Fix missing test dependency

Also update build instructions in README

Author: ERSUCC

README.md

@@ -4,11 +4,7 @@ This is a very small example NetLogo extension, written in Java.
 
 ## Building
 
-Use the netlogo.jar.url environment variable to tell sbt which NetLogo.jar to compile against (defaults to NetLogo 5.3). For example:
-
-    sbt -Dnetlogo.jar.url=file:///path/to/NetLogo/target/NetLogo.jar package
-
-If compilation succeeds, `sample.jar` will be created.
+To compile the extension, run `sbt package`. If compilation succeeds, `sample.jar` will be created.
 
 ## Terms of Use
 

build.sbt

@@ -11,5 +11,5 @@ scalaVersion := "3.7.0"
 Test / scalaSource := baseDirectory.value / "src" / "test"
 scalacOptions ++= Seq("-deprecation", "-unchecked", "-Xfatal-warnings", "-feature", "-encoding", "us-ascii", "-release", "11")
 
-netLogoVersion      := "7.0.4"
+netLogoVersion      := "7.0.4-bfe6fe4"
 netLogoClassManager := "SampleExtension"