PEP 544: Replace broken link to Zope documentation (#2350)

* PEP 544: Replace broken link to Zope documentation

* PEP 544: Replace bare URL with descriptive text

Author: aphedges

pep-0544.txt

@@ -1377,7 +1377,8 @@ Support adapters and adaptation
 -------------------------------
 
 Adaptation was proposed by :pep:`246` (rejected) and is supported by
-``zope.interface``, see https://docs.zope.org/zope.interface/adapter.html.
+``zope.interface``, see `the Zope documentation on adapter registries
+<https://web.archive.org/web/20160802080957/https://docs.zope.org/zope.interface/adapter.html>`_.
 Adapters is quite an advanced concept, and :pep:`484` supports unions and
 generic aliases that can be used instead of adapters. This can be illustrated
 with an example of ``Iterable`` protocol, there is another way of supporting