DOC: Fix some document build errors about rst markups

doc/release/upcoming_changes/25168.change.rst

@@ -1,6 +1,7 @@
 New ``copy`` keyword meaning for `numpy.array` and `numpy.asarray`
 ------------------------------------------------------------------
 Now `numpy.array` and `numpy.asarray` support three values for ``copy`` parameter:
+
 * ``None`` - A copy will only be made if it is necessary.
 * ``True`` - Always make a copy.
 * ``False`` - Never make a copy. If a copy is required a ``ValueError`` is raised.

doc/release/upcoming_changes/25866.c_api.rst

@@ -3,6 +3,7 @@ New C-API import functions
 We have now added ``PyArray_ImportNumPyAPI`` and ``PyUFunc_ImportUFuncAPI``
 as static inline functions to import the NumPy C-API tables.
 The new functions have two advantages over `import_array` and `import_ufunc`:
+
 - They check whether the import was already performed and are light-weight
   if not, allowing to add them judiciously (although this is not preferable
   in most cases).

doc/source/numpy_2_0_migration_guide.rst

@@ -92,6 +92,7 @@ This include is also needed when vendoring ``npy_2_compat.h`` into your own
 codebase to allow use of the new definitions when compiling with NumPy 1.x.
 
 Functionality which previously did not require import includes:
+
 * Functions to access dtype flags: ``PyDataType_FLAGCHK``,
   ``PyDataType_REFCHK``, and the related ``NPY_BEGIN_THREADS_DESCR``.
 * ``PyArray_GETITEM`` and ``PyArray_SETITEM``.

doc/source/reference/c-api/array.rst

@@ -3737,7 +3737,7 @@ the C-API is needed then some additional steps must be taken.
     .. versionadded:: 2.0
         This function is backported in the ``npy_2_compat.h`` header.
 
-.. c:macro:: void import_array(void)
+.. c:macro:: import_array(void)
 
     This function must be called in the initialization section of a
     module that will make use of the C-API. It imports the module

doc/source/reference/c-api/types-and-structures.rst

@@ -491,6 +491,7 @@ PyArray_ArrFuncs
 ----------------
 
 .. c:function:: PyArray_ArrFuncs *PyDataType_GetArrFuncs(PyArray_Descr *dtype)
+
     Fetch the legacy `PyArray_ArrFuncs` of the datatype (cannot fail).
 
     .. versionadded:: NumPy 2.0

doc/source/reference/c-api/ufunc.rst

@@ -442,7 +442,7 @@ Importing the API
         This function mainly checks for ``PyUFunc_API == NULL`` so it can be
         manually backported if desired.
 
-.. c:macro:: void import_ufunc(void)
+.. c:macro:: import_ufunc(void)
 
     These are the constants and functions for accessing the ufunc
     C-API from extension modules in precisely the same way as the