[doc] update apidoc (#530)

Author: ver217

docs/colossalai/colossalai.context.process_group_initializer.initializer_moe.rst

@@ -14,7 +14,6 @@ colossalai.context.process\_group\_initializer
    colossalai.context.process_group_initializer.initializer_3d
    colossalai.context.process_group_initializer.initializer_data
    colossalai.context.process_group_initializer.initializer_model
-   colossalai.context.process_group_initializer.initializer_moe
    colossalai.context.process_group_initializer.initializer_pipeline
    colossalai.context.process_group_initializer.initializer_sequence
    colossalai.context.process_group_initializer.initializer_tensor

docs/colossalai/colossalai.context.process_group_initializer.rst

@@ -18,3 +18,4 @@ colossalai.context
    colossalai.context.moe_context
    colossalai.context.parallel_context
    colossalai.context.parallel_mode
+   colossalai.context.singleton_meta

docs/colossalai/colossalai.context.rst

@@ -0,0 +1,5 @@
+colossalai.context.singleton\_meta
+==================================
+
+.. automodule:: colossalai.context.singleton_meta
+   :members:

docs/colossalai/colossalai.context.singleton_meta.rst

@@ -0,0 +1,5 @@
+colossalai.logging.logger
+=========================
+
+.. automodule:: colossalai.logging.logger
+   :members:

docs/colossalai/colossalai.logging.logger.rst

@@ -8,4 +8,4 @@ colossalai.logging
 .. toctree::
    :maxdepth: 2
 
-   colossalai.logging.logging
+   colossalai.logging.logger