maybe it should be "Let's" here

fanofxiaofeng · web-flow · commit 141d448c17a1 · 2017-10-16T15:37:13.000+08:00
diff --git a/decorator/README.md b/decorator/README.md
@@ -35,7 +35,7 @@ Wikipedia says
 
 **Programmatic Example**
 
-Lets take the troll example. First of all we have a simple troll implementing the troll interface
+Let's take the troll example. First of all we have a simple troll implementing the troll interface
 
 ```
 public interface Troll {
