fix syntax errors

image_classification/README.en.md

@@ -376,7 +376,7 @@ reader=paddle.reader.batch(
         batch_size=128)
 ```
 
-`feeding` is devoted to specify the correspondence between each yield record and `paddle.layer.data`. For instance,
+`feeding` is devoted to specifying the correspondence between each yield record and `paddle.layer.data`. For instance,
  the first column of data generated by `cifar.train10()` corresponds to image layer's feature.
 
 ```python