Update pybind.cc

test=release/1.0.0

Author: panyx0718

paddle/fluid/pybind/pybind.cc

@@ -174,8 +174,8 @@ PYBIND11_PLUGIN(core) {
      columns, hence [5, 2].
 
       x.lod  = [[2, 3]]
-      x.data = [[1, 2], [3, 4],
-                [5, 6], [7, 8], [9, 10]]
+      x.data = [[1, 2], [3, 4],  // seq 1
+                [5, 6], [7, 8], [9, 10]]  // seq 2
       x.shape = [5, 2]
 
       LoD can have multiple levels (for example, a paragraph can have multiple