better doc.

theano/sandbox/neighbours.py

@@ -428,6 +428,8 @@ def images2neibs(ten4, neib_shape, neib_step=None, mode='valid'):
             Reshapes the input as a 2D tensor where each row is an
             pooling example. Pseudo-code of the output:
 
+            .. code-block:: python
+
                 idx = 0
                 for i in xrange(list 1 dim)
                     for j in xrange(list 2 dim)
@@ -447,11 +449,11 @@ def neibs2images(neibs, neib_shape, original_shape, mode='valid'):
     """
     Inverse of images2neib.
 
-    neibs : matrix like the one obtained by images2neib
-    neib_shape : neib_shape that was used in images2neib
-    original_shape : original shape of the 4d tensor given to images2neib
+    :param neibs: matrix like the one obtained by images2neib
+    :param neib_shape: neib_shape that was used in images2neib
+    :param original_shape: original shape of the 4d tensor given to images2neib
 
-    Return a 4d tensor of shape `original_shape`.
+    :return: Return a 4d tensor of shape `original_shape`.
     """
     neibs = T.as_tensor_variable(neibs)
     neib_shape = T.as_tensor_variable(neib_shape)