增加小班，添加学员接口

mec-web/src/main/java/com/ym/mec/web/controller/ClassGroupStudentController.java

@@ -53,7 +53,7 @@ public class ClassGroupStudentController extends BaseController {
     }
 
 
-    @ApiOperation(value = "添加学（小班课）")
+    @ApiOperation(value = "添加学生（小班课）")
     @PostMapping("/addStudents")
     @PreAuthorize("@pcs.hasPermissions('classGroupStudent/addStudents')")
     @ApiImplicitParams({