Generate docs for Fluid API (#6215)

* add doc config for fluid

* fix typo

* follow comments

doc/api/index_en.rst

@@ -7,3 +7,4 @@ API
     v2/model_configs.rst
     v2/data.rst
     v2/run_logic.rst
+    v2/fluid.rst

doc/api/v2/fluid.rst

@@ -0,0 +1,18 @@
+======================
+Fluid
+======================
+
+..  toctree::
+    :maxdepth: 1
+
+    fluid/layers.rst
+    fluid/data_feeder.rst
+    fluid/executor.rst
+    fluid/initializer.rst
+    fluid/evaluator.rst
+    fluid/nets.rst
+    fluid/optimizer.rst
+    fluid/param_attr.rst
+    fluid/profiler.rst
+    fluid/regularizer.rst
+

doc/api/v2/fluid/data_feeder.rst

@@ -0,0 +1,9 @@
+===========
+DataFeeder
+===========
+
+DataFeeder
+-----------
+..  automodule:: paddle.v2.fluid.data_feeder
+    :members: DataFeeder
+    :noindex:

doc/api/v2/fluid/evaluator.rst

@@ -0,0 +1,9 @@
+===========
+Evaluator
+===========
+
+Evaluator
+-----------
+..  automodule:: paddle.v2.fluid.evaluator
+    :members: Evaluator
+    :noindex:

doc/api/v2/fluid/executor.rst

@@ -0,0 +1,9 @@
+===========
+Executor
+===========
+
+Executor
+-----------
+..  automodule:: paddle.v2.fluid.executor
+    :members: Executor
+    :noindex:

doc/api/v2/fluid/initializer.rst

@@ -0,0 +1,50 @@
+===========
+Initializer
+===========
+
+
+
+Initializer
+-----------
+..  automodule:: paddle.v2.fluid.initializer
+    :members: Initializer
+    :noindex:
+
+
+
+ConstantInitializer
+-------------------
+..  automodule:: paddle.v2.fluid.initializer
+    :members: ConstantInitializer
+    :noindex:
+
+
+
+UniformInitializer
+------------------
+..  automodule:: paddle.v2.fluid.initializer
+    :members: UniformInitializer
+    :noindex:
+
+
+
+NormalInitializer
+-----------------
+..  automodule:: paddle.v2.fluid.initializer
+    :members: NormalInitializer
+    :noindex:
+
+
+XavierInitializer
+-----------------
+..  automodule:: paddle.v2.fluid.initializer
+    :members: XavierInitializer
+    :noindex:
+
+
+MSRAInitializer
+---------------
+..  automodule:: paddle.v2.fluid.initializer
+    :members: MSRAInitializer
+    :noindex:
+

doc/api/v2/fluid/nets.rst

@@ -0,0 +1,22 @@
+===========
+Nets
+===========
+
+simple_img_conv_pool
+-----------
+..  autofunction:: paddle.v2.fluid.nets.simple_img_conv_pool
+    :noindex:
+
+
+img_conv_group
+-----------
+..  autofunction:: paddle.v2.fluid.nets.img_conv_group
+    :noindex:
+
+
+sequence_conv_pool
+-----------
+..  autofunction:: paddle.v2.fluid.nets.sequence_conv_pool
+    :noindex:
+
+

doc/api/v2/fluid/optimizer.rst

@@ -0,0 +1,54 @@
+===========
+Optimizer
+===========
+
+Optimizer
+-----------
+..  automodule:: paddle.v2.fluid.optimizer
+    :members: Optimizer
+    :noindex:
+
+
+SGDOptimizer
+-----------
+..  automodule:: paddle.v2.fluid.optimizer
+    :members: SGDOptimizer
+    :noindex:
+
+
+
+MomentumOptimizer
+-----------
+..  automodule:: paddle.v2.fluid.optimizer
+    :members: MomentumOptimizer
+    :noindex:
+
+
+
+AdagradOptimizer
+-----------
+..  automodule:: paddle.v2.fluid.optimizer
+    :members: AdagradOptimizer
+    :noindex:
+
+
+AdamOptimizer
+-----------
+..  automodule:: paddle.v2.fluid.optimizer
+    :members: AdamOptimizer
+    :noindex:
+
+
+AdamaxOptimizer
+-----------
+..  automodule:: paddle.v2.fluid.optimizer
+    :members: AdamaxOptimizer
+    :noindex:
+
+
+DecayedAdagradOptimizer
+-----------
+..  automodule:: paddle.v2.fluid.optimizer
+    :members: DecayedAdagradOptimizer
+    :noindex:
+

doc/api/v2/fluid/param_attr.rst

@@ -0,0 +1,11 @@
+===========
+ParamAttr
+===========
+
+
+
+ParamAttr
+-----------
+..  automodule:: paddle.v2.fluid.param_attr
+    :members: ParamAttr
+    :noindex:

doc/api/v2/fluid/profiler.rst

@@ -0,0 +1,10 @@
+===========
+Profiler
+===========
+
+
+
+Profiler
+-----------
+..  autofunction:: paddle.v2.fluid.profiler.cuda_profiler
+    :noindex:

doc/api/v2/fluid/regularizer.rst

@@ -0,0 +1,25 @@
+===========
+Regularizer
+===========
+
+WeightDecayRegularizer
+-----------
+..  automodule:: paddle.v2.fluid.regularizer
+    :members: WeightDecayRegularizer
+    :noindex:
+
+
+L2DecayRegularizer
+-----------
+..  automodule:: paddle.v2.fluid.regularizer
+    :members: L2DecayRegularizer
+    :noindex:
+
+
+
+L1DecayRegularizer
+-----------
+..  automodule:: paddle.v2.fluid.regularizer
+    :members: L1DecayRegularizer
+
+

python/paddle/v2/fluid/layers.py

@@ -31,11 +31,9 @@ def fc(input,
        size: The size of the layer
        num_flatten_dims: Number of columns in input
        param_attr: The parameters/weights to the FC Layer
-       param_initializer: Initializer used for the weight/parameter.
+       param_initializer: Initializer used for the weight/parameter. If None, XavierInitializer() is used
-       If None, XavierInitializer() is used
        bias_attr: The bias parameter for the FC layer
-       bias_initializer: Initializer used for the bias.
+       bias_initializer: Initializer used for the bias. If None, then ConstantInitializer() is used
-       If None, then ConstantInitializer() is used
        act: Activation to be applied to the output of FC layer
        name: Name/alias of the function
        main_program: Name of the main program that calls this