Pretty up scripts with print.

scripts/array.rhai

@@ -1,7 +1,9 @@
 let x = [1, 2, 3];
 
-print(x[1]);        // prints 2
+print("x[1] should be 2:");
+print(x[1]);
 
 x[1] = 5;
 
-print(x[1]);        // prints 5
+print("x[1] should be 5:");
+print(x[1]);