!515 Modify Asynchronous Data Dump doc

Merge pull request !515 from caifubi/r0.6

tutorials/source_en/advanced_use/customized_debugging_information.md

@@ -250,7 +250,7 @@ When the training result deviates from the expectation on Ascend, the input and
     }
     ```
 
-    > - Iteration should be set to 0 in non data sink mode and data of every iterationi will be dumped.
+    > - Iteration should be set to 0 in non data sink mode and data of every iteration will be dumped.
     > - Iteration should increase by 1 in data sink mode. For example, data of GetNext will be dumped in iteration 0 and data of compute graph will be dumped in iteration 1.
 
 5. Set environment variables.

tutorials/source_zh_cn/advanced_use/customized_debugging_information.md

@@ -252,8 +252,8 @@ val:[[1 1]
     }
     ```
 
-    > - 非数据下沉模式下，iteration需要设置成0，并且会Dump出每个epoch的数据。
-    > - 数据下沉模式iteration需要增加1。例如iteration-0会Dump出GetNext算子的数据，而iteration-1才会去Dump真正的计算图的数据。
+    > - 非数据下沉模式下，iteration需要设置成0，并且会Dump出每个iteration的数据。
+    > - 数据下沉模式iteration需要增加1。例如json中"iteration":0会Dump出GetNext算子的数据，而"iteration":1才会去Dump真正的计算图的第0个iteration数据。
 
 5. 设置数据Dump的环境变量。