Updated 在线授课接口定义 (markdown)

@@ -407,7 +407,7 @@ Response ：
 >在Request body的参数中,`userId`是用户自己的id, `type`是用户类型, `TEACHER` 或者`STUDENT`
 >
 
-接口地址：/teaching/callback/absenteeism
+接口地址：/teaching/callback/absent
 
 请求方式：POST
 
@@ -415,9 +415,9 @@ Request body：
 
 ```
 {
-    "workOrderId": 1234,
-    "userId": 12938,
-    "type":"TEACHER"
+    "userId":12938,
+    "type":"STUDENT",
+    "workOrderId":3979
 }
 ```