Update Doc/c-api/exceptions.rst

Co-authored-by: Alex Waygood <[email protected]>

Author: iritkatriel

Doc/c-api/exceptions.rst

@@ -106,7 +106,7 @@ For convenience, some of these functions will always return a
 ``NULL`` pointer for use in a ``return`` statement. Also, for all of the
 functions in this subsection, if an exception has already been caught,
 that exception will be implicitly chained (i.e. the last caught exception
-will become the new exception's :attr:`__context__`).
+will become the new exception's :attr:`~BaseException.__context__`).
 
 
 .. c:function:: void PyErr_SetString(PyObject *type, const char *message)