Update README.md.(#17)

Author: dora4

docs/README.md

@@ -58,7 +58,10 @@ Then, override the onActivityResult method.
 
 Connect Wallet from a Fragment
 ```kotlin
-DoraFund.prepareConnectWallet(fragment, intArrayOf(requestCode), callback)
+// ⚠️Note: Must be called in onCreate
+DoraFund.prepareConnectWallet(this, intArrayOf(requestCode)) {
+        requestCode, result ->
+}
 ```
 ```kotlin
 DoraFund.connectWallet(requestCode)

docs/es/README.md

@@ -57,7 +57,10 @@ Luego, sobrescribe el método onActivityResult.
 
 Conexión de la cartera desde un Fragment
 ```kotlin
-DoraFund.prepareConnectWallet(fragment, intArrayOf(requestCode), callback)
+// ⚠️Atención: Debe llamarse en onCreate
+DoraFund.prepareConnectWallet(this, intArrayOf(requestCode)) {
+        requestCode, result -> 
+}
 ```
 ```kotlin
 DoraFund.connectWallet(requestCode)

docs/fr/README.md

@@ -57,7 +57,10 @@ Ensuite, redéfinissez la méthode onActivityResult.
 
 Connexion du portefeuille depuis un Fragment
 ```kotlin
-DoraFund.prepareConnectWallet(fragment, intArrayOf(requestCode), callback)
+// ⚠️Attention : Doit être appelé dans onCreate
+DoraFund.prepareConnectWallet(this, intArrayOf(requestCode)) {
+        requestCode, result ->
+}
 ```
 ```kotlin
 DoraFund.connectWallet(requestCode)

docs/ko/README.md

@@ -57,7 +57,10 @@ DoraFund.connectWallet(this, requestCode)
 
 Fragment에서 지갑 연결
 ```kotlin
-DoraFund.prepareConnectWallet(fragment, intArrayOf(requestCode), callback)
+// ⚠️주의: 반드시 onCreate에서 호출해야 합니다
+DoraFund.prepareConnectWallet(this, intArrayOf(requestCode)) {
+        requestCode, result ->
+}
 ```
 ```kotlin
 DoraFund.connectWallet(requestCode)

docs/zh-cn/README.md

@@ -58,7 +58,10 @@ DoraFund.connectWallet(this, requestCode)
 
 Fragment 连接钱包
 ```kotlin
-DoraFund.prepareConnectWallet(fragment, intArrayOf(requestCode), callback)
+// ⚠️注意：必须在onCreate中调用
+DoraFund.prepareConnectWallet(this, intArrayOf(requestCode)) {
+        requestCode, result ->
+}
 ```
 ```kotlin
 DoraFund.connectWallet(requestCode)

docs/zh-tw/README.md

@@ -57,7 +57,10 @@ DoraFund.connectWallet(this, requestCode)
 
 Fragment 連接錢包
 ```kotlin
-DoraFund.prepareConnectWallet(fragment, intArrayOf(requestCode), callback)
+// ⚠️注意：必須在 onCreate 中調用
+DoraFund.prepareConnectWallet(this, intArrayOf(requestCode)) {
+        requestCode, result ->
+}
 ```
 ```kotlin
 DoraFund.connectWallet(requestCode)

lib/src/main/java/dora/pay/DoraFund.kt

@@ -5,12 +5,10 @@ import android.app.Application
 import android.app.NotificationChannel
 import android.app.NotificationManager
 import android.content.Context
-import android.content.Intent
 import android.graphics.Color
 import android.os.Build
 import android.util.Log
 import androidx.activity.result.ActivityResultLauncher
-import androidx.activity.result.contract.ActivityResultContract
 import androidx.annotation.ColorInt
 import androidx.core.app.NotificationCompat
 import androidx.core.content.ContextCompat