bpo-42294: Add borrowed/strong reference to doc glossary (GH-23206)
Add "borrowed reference" and "strong reference" to the documentation
glossary.
Enhance also Py_INCREF() and Py_NewRef() documentation.
diff --git a/Doc/c-api/arg.rst b/Doc/c-api/arg.rst
index bdaae44..a91b3c7 100644
--- a/Doc/c-api/arg.rst
+++ b/Doc/c-api/arg.rst
@@ -482,7 +482,8 @@
*min* and no more than *max*; *min* and *max* may be equal. Additional
arguments must be passed to the function, each of which should be a pointer to a
:c:type:`PyObject*` variable; these will be filled in with the values from
- *args*; they will contain borrowed references. The variables which correspond
+ *args*; they will contain :term:`borrowed references <borrowed reference>`.
+ The variables which correspond
to optional parameters not given by *args* will not be filled in; these should
be initialized by the caller. This function returns true on success and false if
*args* is not a tuple or contains the wrong number of elements; an exception