removed tutorial markdown and refreshed rst files for consistency

docs/colossalai/colossalai.nn.layer.moe.rst

+colossalai.nn.layer.moe
+=======================
+
+.. automodule:: colossalai.nn.layer.moe
+   :members:
+
+
+.. toctree::
+   :maxdepth: 2
+
+   colossalai.nn.layer.moe.layers

docs/colossalai/colossalai.nn.layer.non_parallel_layers.rst

-colossalai.nn.layer.non\_parallel\_layers
-======================================
-
-.. automodule:: colossalai.nn.layer.non_parallel_layers
-   :members:

docs/colossalai/colossalai.nn.layer.parallel_1d.rst

 colossalai.nn.layer.parallel\_1d
 ================================
 
+.. automodule:: colossalai.nn.layer.parallel_1d
+   :members:
+
+
 .. toctree::
    :maxdepth: 2
 
    colossalai.nn.layer.parallel_1d.layers
-
-
-.. automodule:: colossalai.nn.layer.parallel_1d
-   :members:

docs/colossalai/colossalai.nn.layer.parallel_2d.rst

 colossalai.nn.layer.parallel\_2d
 ================================
 
+.. automodule:: colossalai.nn.layer.parallel_2d
+   :members:
+
+
 .. toctree::
    :maxdepth: 2
 
    colossalai.nn.layer.parallel_2d.layers
-
-
-.. automodule:: colossalai.nn.layer.parallel_2d
-   :members:

docs/colossalai/colossalai.nn.layer.parallel_2p5d.rst

 colossalai.nn.layer.parallel\_2p5d
 ==================================
 
+.. automodule:: colossalai.nn.layer.parallel_2p5d
+   :members:
+
+
 .. toctree::
    :maxdepth: 2
 
    colossalai.nn.layer.parallel_2p5d.layers
-
-
-.. automodule:: colossalai.nn.layer.parallel_2p5d
-   :members:

docs/colossalai/colossalai.nn.layer.parallel_3d.rst

 colossalai.nn.layer.parallel\_3d
 ================================
 
+.. automodule:: colossalai.nn.layer.parallel_3d
+   :members:
+
+
 .. toctree::
    :maxdepth: 2
 
    colossalai.nn.layer.parallel_3d.layers
-
-
-.. automodule:: colossalai.nn.layer.parallel_3d
-   :members:

docs/colossalai/colossalai.nn.layer.parallel_sequence.rst

 colossalai.nn.layer.parallel\_sequence
 ======================================
 
+.. automodule:: colossalai.nn.layer.parallel_sequence
+   :members:
+
+
 .. toctree::
    :maxdepth: 2
 
    colossalai.nn.layer.parallel_sequence.layers
-
-
-.. automodule:: colossalai.nn.layer.parallel_sequence
-   :members:

docs/colossalai/colossalai.nn.layer.rst

 colossalai.nn.layer
 ===================
 
+.. automodule:: colossalai.nn.layer
+   :members:
+
 .. toctree::
    :maxdepth: 2
 
+   colossalai.nn.layer.colossalai_layer
+   colossalai.nn.layer.moe
    colossalai.nn.layer.parallel_1d
    colossalai.nn.layer.parallel_2d
    colossalai.nn.layer.parallel_2p5d
    colossalai.nn.layer.parallel_3d
    colossalai.nn.layer.parallel_sequence
-   colossalai.nn.layer.non_parallel_layers
+   colossalai.nn.layer.utils
+   colossalai.nn.layer.vanilla
    colossalai.nn.layer.wrapper
-   colossalai.nn.layer.base_layer
 
 
-.. automodule:: colossalai.nn.layer
-   :members:
+.. toctree::
+   :maxdepth: 2
+
+   colossalai.nn.layer.base_layer

docs/colossalai/colossalai.nn.layer.utils.common.rst

+colossalai.nn.layer.utils.common
+================================
+
+.. automodule:: colossalai.nn.layer.utils.common
+   :members:

docs/colossalai/colossalai.nn.layer.utils.rst

+colossalai.nn.layer.utils
+=========================
+
+.. automodule:: colossalai.nn.layer.utils
+   :members:
+
+
+.. toctree::
+   :maxdepth: 2
+
+   colossalai.nn.layer.utils.common

docs/colossalai/colossalai.nn.layer.vanilla.layers.rst

+colossalai.nn.layer.vanilla.layers
+==================================
+
+.. automodule:: colossalai.nn.layer.vanilla.layers
+   :members:

docs/colossalai/colossalai.nn.layer.vanilla.rst

+colossalai.nn.layer.vanilla
+===========================
+
+.. automodule:: colossalai.nn.layer.vanilla
+   :members:
+
+
+.. toctree::
+   :maxdepth: 2
+
+   colossalai.nn.layer.vanilla.layers

docs/colossalai/colossalai.nn.layer.wrapper.pipeline_wrapper.rst

+colossalai.nn.layer.wrapper.pipeline\_wrapper
+=============================================
+
+.. automodule:: colossalai.nn.layer.wrapper.pipeline_wrapper
+   :members:

docs/colossalai/colossalai.nn.layer.wrapper.rst

@@ -9,3 +9,4 @@ colossalai.nn.layer.wrapper
    :maxdepth: 2
 
    colossalai.nn.layer.wrapper.lambda_wrapper
+   colossalai.nn.layer.wrapper.pipeline_wrapper

docs/colossalai/colossalai.nn.loss.cross_entropy_2d.rst

-colossalai.nn.loss.cross\_entropy\_2d
-=====================================
-
-.. automodule:: colossalai.nn.loss.cross_entropy_2d
-   :members:

docs/colossalai/colossalai.nn.loss.cross_entropy_2p5d.rst

-colossalai.nn.loss.cross\_entropy\_2p5d
-=======================================
-
-.. automodule:: colossalai.nn.loss.cross_entropy_2p5d
-   :members:

docs/colossalai/colossalai.nn.loss.cross_entropy_3d.rst

-colossalai.nn.loss.cross\_entropy\_3d
-=====================================
-
-.. automodule:: colossalai.nn.loss.cross_entropy_3d
-   :members:

docs/colossalai/colossalai.nn.loss.loss_2d.rst

+colossalai.nn.loss.loss\_2d
+===========================
+
+.. automodule:: colossalai.nn.loss.loss_2d
+   :members:

docs/colossalai/colossalai.nn.loss.loss_2p5d.rst

+colossalai.nn.loss.loss\_2p5d
+=============================
+
+.. automodule:: colossalai.nn.loss.loss_2p5d
+   :members:

docs/colossalai/colossalai.nn.loss.loss_3d.rst

+colossalai.nn.loss.loss\_3d
+===========================
+
+.. automodule:: colossalai.nn.loss.loss_3d
+   :members: