Add some new api documentations (#10637)

Author: weixing02

doc/fluid/api/clip.rst

@@ -0,0 +1,47 @@
+..  THIS FILE IS GENERATED BY `gen_doc.{py|sh}`
+    !DO NOT EDIT THIS FILE MANUALLY!
+
+====
+clip
+====
+
+ErrorClipByValue
+----------------
+
+..  autoclass:: paddle.fluid.clip.ErrorClipByValue
+    :members:
+    :noindex:
+
+GradientClipByValue
+-------------------
+
+..  autoclass:: paddle.fluid.clip.GradientClipByValue
+    :members:
+    :noindex:
+
+GradientClipByNorm
+------------------
+
+..  autoclass:: paddle.fluid.clip.GradientClipByNorm
+    :members:
+    :noindex:
+
+GradientClipByGlobalNorm
+------------------------
+
+..  autoclass:: paddle.fluid.clip.GradientClipByGlobalNorm
+    :members:
+    :noindex:
+
+append_gradient_clip_ops
+------------------------
+
+..  autofunction:: paddle.fluid.clip.append_gradient_clip_ops
+    :noindex:
+
+error_clip_callback
+-------------------
+
+..  autofunction:: paddle.fluid.clip.error_clip_callback
+    :noindex:
+

doc/fluid/api/evaluator.rst

@@ -5,24 +5,3 @@
 evaluator
 =========
 
-ChunkEvaluator
---------------
-
-..  autoclass:: paddle.fluid.evaluator.ChunkEvaluator
-    :members:
-    :noindex:
-
-EditDistance
---------------
-
-..  autoclass:: paddle.fluid.evaluator.EditDistance
-    :members:
-    :noindex:
-
-DetectionMAP
---------------
-
-..  autoclass:: paddle.fluid.evaluator.DetectionMAP
-    :members:
-    :noindex:
-  

doc/fluid/api/executor.rst

@@ -30,3 +30,9 @@ switch_scope
 ..  autofunction:: paddle.fluid.executor.switch_scope
     :noindex:
 
+fetch_var
+---------
+
+..  autofunction:: paddle.fluid.executor.fetch_var
+    :noindex:
+

doc/fluid/api/gen_doc.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 python gen_doc.py layers --submodules control_flow device io nn ops tensor > layers.rst
 
-for module in io data_feeder evaluator executor initializer io nets optimizer param_attr profiler regularizer
+for module in data_feeder clip metrics executor initializer io nets optimizer param_attr profiler regularizer
 do
   python gen_doc.py ${module} > ${module}.rst
 done

doc/fluid/api/index_en.rst

@@ -9,8 +9,9 @@ Fluid
     data_feeder.rst
     executor.rst
     initializer.rst
-    evaluator.rst
+    metrics.rst
     nets.rst
+    clip.rst
     optimizer.rst
     param_attr.rst
     profiler.rst

doc/fluid/api/initializer.rst

@@ -33,11 +33,16 @@ Xavier
     :members:
     :noindex:
 
-MSRA
-------
+force_init_on_cpu
+-----------------
 
-..  autoclass:: paddle.fluid.initializer.MSRA
-    :members:
+..  autofunction:: paddle.fluid.initializer.force_init_on_cpu
+    :noindex:
+
+init_on_cpu
+-----------
+
+..  autofunction:: paddle.fluid.initializer.init_on_cpu
     :noindex:
 
 ConstantInitializer
@@ -68,9 +73,3 @@ XavierInitializer
     :members:
     :noindex:
 
-
-MSRAInitializer
------------------
-..  autoclass:: paddle.fluid.initializer.MSRAInitializer
-    :members:
-    :noindex: