"fix some typo"

Author: dzhwinter

paddle/fluid/operators/uniform_random_batch_size_like_op.cc

@@ -35,7 +35,7 @@ class UniformRandomBatchSizeLikeOpMaker : public BatchSizeLikeOpMaker {
  protected:
   void Apply() override {
     AddComment(R"DOC(
-Uniform random operator
+UniformRandomBatchSizeLike operator.
 
 This operator initializes a tensor with the same batch_size as the Input tensor
  with random values sampled from a uniform distribution.

python/paddle/fluid/layers/control_flow.py

@@ -866,8 +866,7 @@ def array_write(x, i, array=None):
         Variable: The output LOD_TENSOR_ARRAY where the input tensor is written.
 
     Examples:
-
-        .. code-block::python
+        .. code-block:: python
 
           tmp = fluid.layers.zeros(shape=[10], dtype='int32')
           i = fluid.layers.fill_constant(shape=[1], dtype='int64', value=10)

python/paddle/fluid/layers/nn.py

@@ -2935,7 +2935,7 @@ def split(input, num_or_sections, dim=-1, name=None):
                        will be named automatically.
 
     Returns:
-        List: The list of segmented tensor variables.
+        list(Variable): The list of segmented tensor variables.
 
     Examples:
         .. code-block:: python