Update readme regarding method name

Author: Zaki Ibrahim

README.md

@@ -424,6 +424,14 @@ Available methods for `MidtransCoreApi` class
      * @return {JSONObject} - org.json Promise contains Object from JSON decoded response
      */
     JSONObject denyTransaction(String orderId);
+    
+    /**
+     * Do `v1/bins/{bin}` API request to Core API
+     * @param binNumber {String} of the transaction (more detail refer to: https://api-docs.midtrans.com/#bin-api)
+     * @return {JSONObject} - org.json Promise contains Object from JSON decoded response
+     * @throws MidtransError when an exception was occurred during executing the request.
+     */
+    JSONObject getBIN(String binNumber) throws MidtransError;
 ```
 `params` is Map Object or String of JSON of [Core API Parameter](https://api-docs.midtrans.com/#json-objects)
 
@@ -598,7 +606,7 @@ public class MidtransIrisExample {
 Available methods for `MidtransIrisApi` class
 ```java
     /**
-     * Do re-set config Class iris-credentials, IrisIdempotencyKey
+     * Do re-set config Class iris-credential, IrisIdempotencyKey
      *
      * @return {Config class}
      */
@@ -618,7 +626,7 @@ Available methods for `MidtransIrisApi` class
      * @return {JSONObject} - org.json Promise contains Object from JSON decoded response refer to: https://iris-docs.midtrans.com/#check-balance-aggregator
      * @throws MidtransError when an exception was occurred during executing the request.
      */
-    JSONObject getAggregatorBalance() throws MidtransError;
+    JSONObject getBalance() throws MidtransError;
 
     /**
      * Do create `/beneficiaries` Use this API to create a new beneficiary information for quick access on the payout page in Iris Portal.
@@ -645,7 +653,7 @@ Available methods for `MidtransIrisApi` class
      * @return {JSONObject} - org.json Promise contains Object from JSON decoded response refer to: https://iris-docs.midtrans.com/#list-beneficiaries
      * @throws MidtransError when an exception was occurred during executing the request.
      */
-    JSONArray getListBeneficiaries() throws MidtransError;
+    JSONArray getBeneficiaries() throws MidtransError;
 
     /**
      * Do create `/payouts` This API is for Creator to create a payout. It can be used for single payout and also multiple payouts.
@@ -681,7 +689,7 @@ Available methods for `MidtransIrisApi` class
      * @return {JSONObject} - org.json Promise contains Object from JSON decoded response
      * @throws MidtransError when an exception was occurred during executing the request.
      */
-    JSONObject getPayoutsDetails(String referenceNo) throws MidtransError;
+    JSONObject getPayoutDetails(String referenceNo) throws MidtransError;
 
     /**
      * Do get `/statements` Use this API for list all transactions history for a month. You can specified start date and also end date for range transaction history.
@@ -712,6 +720,7 @@ Available methods for `MidtransIrisApi` class
     /**
      * Do get `/bank_accounts/{bank_account_id}/balance` For Facilitator Partner, use this API is to get current balance information of your registered bank account.
      *
+     * @param bankAccountId String Bank Account Number
      * @return {JSONObject} - org.json Promise contains Object from JSON decoded response refer to: https://iris-docs.midtrans.com/#check-balance-facilitator
      * @throws MidtransError when an exception was occurred during executing the request.
      */
@@ -723,10 +732,10 @@ Available methods for `MidtransIrisApi` class
      * @return {JSONObject} - org.json Promise contains Object from JSON decoded response (more params detail refer to: https://iris-docs.midtrans.com/#list-banks)
      * @throws MidtransError when an exception was occurred during executing the request.
      */
-    JSONObject getListBank() throws MidtransError;
+    JSONObject getBeneficiaryBanks() throws MidtransError;
 
     /**
-     * Do validate `/account_validation?bank={bank}&account={account}` Use this API for check if an account is valid, if valid return account information.
+     * Do validate `/account_validation` Use this API for check if an account is valid, if valid return account information.
      *
      * @param bank    String bank code
      * @param account String Account number