Fix file path

Author: SmiddyPence

src/main/java/org/javaparser/examples/chapter2/CommentReporterStarter.java

@@ -9,7 +9,7 @@
 
 public class CommentReporterStarter {
 
-    private static final String FILE_PATH = "src/main/java/org/javaparser/examples/samples/ReversePolishNotation.java";
+    private static final String FILE_PATH = "src/main/java/org/javaparser/samples/ReversePolishNotation.java";
 
     public static void main(String[] args) throws Exception {