gh-93738: Documentation C syntax (:c:type:`PyTypeObject*` -> :c:expr:`PyTypeObject*`) (#97778)

Co-authored-by: Ezio Melotti <ezio.melotti@gmail.com>
diff --git a/Doc/c-api/object.rst b/Doc/c-api/object.rst
index fb03366..5a25a2b 100644
--- a/Doc/c-api/object.rst
+++ b/Doc/c-api/object.rst
@@ -310,7 +310,7 @@
    is equivalent to the Python expression ``type(o)``. This function increments the
    reference count of the return value. There's really no reason to use this
    function instead of the :c:func:`Py_TYPE()` function, which returns a
-   pointer of type :c:type:`PyTypeObject*`, except when the incremented reference
+   pointer of type :c:expr:`PyTypeObject*`, except when the incremented reference
    count is needed.
 
 
diff --git a/Doc/c-api/typehints.rst b/Doc/c-api/typehints.rst
index 88554a3..4c1957a 100644
--- a/Doc/c-api/typehints.rst
+++ b/Doc/c-api/typehints.rst
@@ -15,7 +15,7 @@
    Equivalent to calling the Python class
    :class:`types.GenericAlias`.  The *origin* and *args* arguments set the
    ``GenericAlias``\ 's ``__origin__`` and ``__args__`` attributes respectively.
-   *origin* should be a :c:type:`PyTypeObject*`, and *args* can be a
+   *origin* should be a :c:expr:`PyTypeObject*`, and *args* can be a
    :c:expr:`PyTupleObject*` or any ``PyObject*``.  If *args* passed is
    not a tuple, a 1-tuple is automatically constructed and ``__args__`` is set
    to ``(args,)``.