Update README_kr.md

Author: ShockUtility

README_kr.md

@@ -16,15 +16,15 @@ SmartAd 는 iOS 와 Android 에서 AdMob 과 Audience Network 광고 프레임
 # 설치
 ```java
 dependencies {
-    compile 'kr.docs:smart-ad:0.3.5'
+    implementation 'kr.docs:smart-ad:0.3.5'
 } 
 ```
 
 # 의존성
 ```java
 dependencies {
-    compile 'com.google.android.gms:play-services-ads:11.+'
-    compile 'com.facebook.android:audience-network-sdk:4.+'
+    implementation 'com.google.android.gms:play-services-ads:11.+'
+    implementation 'com.facebook.android:audience-network-sdk:4.+'
 } 
 ```