Add debug print for incoming messages and update README

In SparkApiClient, a print statement was added for incoming messages to aid in debugging. The README was also updated to better illustrate the application usage and configuration, this includes images of the interface and directions on how to set the API key (for the integration with Spark API) and the operating systems supported by the software. This update hopes to make onboarding easier for new users and provide insight into possible issues at the time of receiving messages from the API.

Author: pwh-pwh

README.md

@@ -1,2 +1,14 @@
 # 讯飞星火认知模型桌面应用
-使用sparkapi进行接口对接
+使用sparkapi进行接口对接
+
+## 使用界面
+![main.png](img%2Fmain.png)
+
+## 配置
+点击me->set key 将科大讯飞注册的应用key填入即可
+![use.png](img%2Fuse.png)
+
+## 系统支持
+1. windows
+2. linux(todo)
+3. macos(todo)

img/main.png

@@ -114,6 +114,7 @@ class SparkApiClient {
             send(reqJson.toByteArray())
             while (true) {
                 val message = incoming.receive() as? Frame.Text ?: continue
+                println(message.readText())
                 val resp = json.decodeFromString<RespPayload>(message.readText())
                 if(msgList.last().id == resp.header.sid) {
                     var last = msgList.last()