Update Message docs

Author: sy-records

docs/en/_sidebar.md

@@ -1,11 +1,11 @@
 * MQTT Coroutine Client
-    * [Client API](en/client)
-
-* MQTT Server
-  * [Message API](en/message)
+  * [Client API](en/client)
 
 * MQTT Protocol Analysis
-    * [Protocol API](en/protocol)
+  * [Protocol API](en/protocol)
+
+* MQTT Message
+  * [Message API](en/message)
 
 * Upgrade Guide
   * [1.2 Upgrade Guide](en/upgrade/1.2.md)

docs/en/message.md

@@ -1,6 +1,6 @@
 # Message API
 
-It is mainly convenient for replying to the ACK on the other side in the Server.
+It is mainly convenient for replying to the ACK on the other side in the Server/Client.
 
 ## Usage examples
 
@@ -30,3 +30,17 @@ $ack->setProtocolLevel(ProtocolInterface::MQTT_PROTOCOL_LEVEL_5_0)
 $ack_data = $ack->getContents();
 $ack_data = (string) $ack;
 ```
+
+### Server
+
+```php
+$server->send($fd, $ack->getContents());
+$server->send($fd, (string) $ack);
+```
+
+### Client
+
+```php
+// Add param to get an array
+$client->send($ack->getContents(true), false);
+```

docs/zh-cn/_sidebar.md

@@ -1,11 +1,11 @@
 * MQTT 协程客户端
-    * [Client API](zh-cn/client)
-
-* MQTT Server
-  * [Message API](zh-cn/message)
+  * [Client API](zh-cn/client)
 
 * MQTT 协议解析
-    * [Protocol API](zh-cn/protocol)
+  * [Protocol API](zh-cn/protocol)
+
+* MQTT Message
+  * [Message API](zh-cn/message)
 
 * 版本升级指南
   * [1.2 升级指南](zh-cn/upgrade/1.2.md)

docs/zh-cn/message.md

@@ -1,6 +1,6 @@
 # Message API
 
-主要方便用于在 Server 中回复对端 ACK。
+主要方便用于在 Server/Client 中回复对端 ACK。
 
 ## 使用示例
 
@@ -30,3 +30,17 @@ $ack->setProtocolLevel(ProtocolInterface::MQTT_PROTOCOL_LEVEL_5_0)
 $ack_data = $ack->getContents();
 $ack_data = (string) $ack;
 ```
+
+### Server
+
+```php
+$server->send($fd, $ack->getContents());
+$server->send($fd, (string) $ack);
+```
+
+### Client
+
+```php
+// 增加参数来获取数组
+$client->send($ack->getContents(true), false);
+```