1 bug for CQ in IoTDB customer-doc

In IoTDB cutomer-doc :  https://iotdb.apache.org/zh/UserGuide/Master/Process-Data/Continuous-Query.html#sql-%E8%AF%AD%E5%8F%A5

Above 2 lines are wrong?  I think it shold be : 

第 i (1 <= i) 个窗口的开始时间 <execution_boundary_time> + (i - 1) * <every_interval>。
第 i (1 <= i) 个窗口的结束时间 <execution_boundary_time> + <for_interval> + (i - 1) * <every_interval>。