README.md in chatbase-0.1.4 vs README.md in chatbase-0.1.5

@@ -48,9 +48,40 @@
 => response.body
 
 {"message_id": "1048441442", "status": 200}
 ```
 
+### Send generic multiple messages at once API
+
+```ruby
+chat_params = {
+    messages:[
+        {
+            platform: "ruby",
+            message: "Hello Chatbase message1!",
+            version: "1.0",
+            type: "agent",
+            user_id: "agent-01",
+            time_stamp: DateTime.now.strftime('%Q'),
+        },
+        {
+            platform: "ruby",
+            message: "Hello Chatbase message2!",
+            version: "1.0",
+            type: "agent",
+            user_id: "agent-01",
+            time_stamp: DateTime.now.strftime('%Q'),
+        }
+    ]
+}
+
+response = Chatbase::Message.new.send_messages(chat_params) # messages not message
+
+=> response.body
+
+{"all_succeeded"=>true, "responses"=>[{"message_id"=>1048692001, "status"=>"success"}, {"message_id"=>1048692002, "status"=>"success"}], "status"=>200} 
+```
+
 ### Facebook Message API
 ```ruby
     fb_params = {
         sender: {id: '1520833104112'},
         recipient: {id: '528195999812'},