fix examplce code of slice api (#47735)

python/paddle/tensor/manipulation.py

@@ -183,13 +183,13 @@ def slice(input, axes, starts, ends):
             starts = [-3, 0, 2]
             ends = [3, 2, 4]
             sliced_1 = paddle.slice(input, axes=axes, starts=starts, ends=ends)
-            # sliced_1 is input[0:3, 0:2, 2:4].
+            # sliced_1 is input[1:3, 0:2, 2:4].
 
             # example 2:
             # attr starts is a list which contain tensor.
             minus_3 = paddle.full([1], -3, "int32")
             sliced_2 = paddle.slice(input, axes=axes, starts=[minus_3, 0, 2], ends=ends)
-            # sliced_2 is input[0:3, 0:2, 2:4].
+            # sliced_2 is input[1:3, 0:2, 2:4].
     """
     if in_dygraph_mode():
         attrs = ()