Make comment more intuitive

build.gradle

@@ -72,8 +72,10 @@ runs {
 // Include resources generated by data generators.
 sourceSets.main.resources { srcDir 'src/generated/resources' }
 
-// Sets up a configuration for "local" dependencies -- that is, dependencies we want to have at runtime in development
-// for testing, but do not want to publish a dependency on.
+// Sets up a dependency configuration called 'localRuntime'.
+// This configuration should be used instead of 'runtimeOnly' to declare
+// a dependency that will be present for runtime testing but that is
+// "optional", meaning it will not be pulled by dependents of this mod.
 configurations {
     runtimeClasspath.extendsFrom localRuntime
 }