Fix markdown-syntax

Justin Lin · Justin Lin · commit 31e8e5683d3c · 2014-03-11T14:34:01.000+08:00
diff --git a/JavaLambdaTutorial.MD b/JavaLambdaTutorial.MD
@@ -974,7 +974,8 @@ Collections.sort(applicants, vacancy::bySeniority);
 ```java
 public interface Part {
     ...
-}```
+}
+```
 
 ```java
 public interface Material {
