Fix some problems in Paddle english instruction doc files. (#53145)

* Fix some problems in Paddle english instruction doc files.

* fix some new questions

* fix cn doc problems, test=document_fix

python/paddle/fluid/framework.py

@@ -718,7 +718,8 @@ def is_compiled_with_cinn():
     """
     Whether this whl package can be used to run the model on CINN.
 
-    Returns (bool): `True` if CINN is currently available, otherwise `False`.
+    Returns:
+        Bool: `True` if CINN is currently available, otherwise `False`.
 
     Examples:
         .. code-block:: python
@@ -733,7 +734,8 @@ def is_compiled_with_cuda():
     """
     Whether this whl package can be used to run the model on GPU.
 
-    Returns (bool): `True` if CUDA is currently available, otherwise `False`.
+    Returns:
+        Bool: `True` if CUDA is currently available, otherwise `False`.
 
     Examples:
         .. code-block:: python
@@ -748,7 +750,8 @@ def is_compiled_with_rocm():
     """
     Whether this whl package can be used to run the model on AMD or Hygon GPU(ROCm).
 
-    Returns (bool): `True` if ROCm is currently available, otherwise `False`.
+    Returns:
+        Bool: `True` if ROCm is currently available, otherwise `False`.
 
     Examples:
         .. code-block:: python

python/paddle/tensor/math.py

@@ -3057,7 +3057,7 @@ def trace(x, offset=0, axis1=0, axis2=1, name=None):
 
 def diagonal(x, offset=0, axis1=0, axis2=1, name=None):
     """
-    This OP computes the diagonals of the input tensor x.
+    Computes the diagonals of the input tensor x.
 
     If ``x`` is 2D, returns the diagonal.
     If ``x`` has larger dimensions, diagonals be taken from the 2D planes specified by axis1 and axis2.