t fix snippets

Co-Authored-By: brianberzins <[email protected]>

Author: isidore

approvaltests-util-tests/src/test/java/org/lambda/utils/MutableTest.java

@@ -9,15 +9,15 @@ public class MutableTest
   @Test
   public void exampleOfSingleElementArray()
   {
-    // snippet: single_element_array
+    // begin-snippet: single_element_array
     final int[] i = {1};
     Function0<Integer> counter = () -> i[0]++;
     // end-snippet
   }
   @Test
   public void exampleOfMutable()
   {
-    // snippet: mutable_example
+    // begin-snippet: mutable_example
     Mutable<String> i = new Mutable<>("Brian");
     Scheduler scheduler = new Scheduler(() -> i.get());
     scheduler.addEvent();