Updates event-emitter.md

gitbook-bot · gitbook-bot · commit 30f8f47979a4 · 2018-04-05T08:00:24.000Z
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diff --git a/event-emitter.md b/event-emitter.md
@@ -55,7 +55,7 @@ for (var event of events) {
 
 ### 
 
-### 2. Kế thừa từ event
+### 2. Kế thừa từ module event
 
 ```javascript
 // DÙNG CLASS
