Update datetime C-API documentation to include links

Author: pganssle

Doc/c-api/datetime.rst

@@ -18,7 +18,7 @@ Macro for access to the UTC singleton:
 .. c:var:: PyObject* PyDateTime_TimeZone_UTC
 
    Returns the time zone singleton representing UTC, the same object as
-   :attr:``datetime.timezone.utc``.
+   :attr:`datetime.timezone.utc`.
 
    .. versionadded:: 3.7
 
@@ -89,39 +89,39 @@ Macros to create objects:
 
 .. c:function:: PyObject* PyDate_FromDate(int year, int month, int day)
 
-   Return a ``datetime.date`` object with the specified year, month and day.
+   Return a :class:`datetime.date` object with the specified year, month and day.
 
 
 .. c:function:: PyObject* PyDateTime_FromDateAndTime(int year, int month, int day, int hour, int minute, int second, int usecond)
 
-   Return a ``datetime.datetime`` object with the specified year, month, day, hour,
+   Return a :class:`datetime.datetime` object with the specified year, month, day, hour,
    minute, second and microsecond.
 
 
 .. c:function:: PyObject* PyTime_FromTime(int hour, int minute, int second, int usecond)
 
-   Return a ``datetime.time`` object with the specified hour, minute, second and
+   Return a :class:`datetime.time` object with the specified hour, minute, second and
    microsecond.
 
 
 .. c:function:: PyObject* PyDelta_FromDSU(int days, int seconds, int useconds)
 
-   Return a ``datetime.timedelta`` object representing the given number of days,
-   seconds and microseconds.  Normalization is performed so that the resulting
-   number of microseconds and seconds lie in the ranges documented for
-   ``datetime.timedelta`` objects.
+   Return a :class:`datetime.timedelta` object representing the given number
+   of days, seconds and microseconds.  Normalization is performed so that the
+   resulting number of microseconds and seconds lie in the ranges documented for
+   :class:`datetime.timedelta` objects.
 
 .. c:function:: PyObject* PyTimeZone_FromOffset(PyDateTime_DeltaType* offset)
 
-   Return a ``datetime.timezone`` object with an unnamed fixed offset
+   Return a :class:`datetime.timezone` object with an unnamed fixed offset
    represented by the *offset* argument.
 
    .. versionadded:: 3.7
 
 .. c:function:: PyObject* PyTimeZone_FromOffsetAndName(PyDateTime_DeltaType* offset, PyUnicode* name)
 
-   Return a ``datetime.timezone`` object with a fixed offset represented by
-   the *offset* argument and with tzname *name*.
+   Return a :class:`datetime.timezone` object with a fixed offset represented
+   by the *offset* argument and with tzname *name*.
 
    .. versionadded:: 3.7
 
@@ -223,11 +223,11 @@ Macros for the convenience of modules implementing the DB API:
 
 .. c:function:: PyObject* PyDateTime_FromTimestamp(PyObject *args)
 
-   Create and return a new ``datetime.datetime`` object given an argument tuple
-   suitable for passing to ``datetime.datetime.fromtimestamp()``.
+   Create and return a new :class:`datetime.datetime` object given an argument
+   tuple suitable for passing to :meth:`datetime.datetime.fromtimestamp()`.
 
 
 .. c:function:: PyObject* PyDate_FromTimestamp(PyObject *args)
 
-   Create and return a new ``datetime.date`` object given an argument tuple
-   suitable for passing to ``datetime.date.fromtimestamp()``.
+   Create and return a new :class:`datetime.date` object given an argument
+   tuple suitable for passing to :meth:`datetime.date.fromtimestamp()`.