Update data-publishers.adoc

Author: tomkralidis

cookbook/sections/data-publishers.adoc

@@ -245,6 +245,8 @@ To describe a retired dataset in WCMP2, one can use the ``properties.status`` ob
 
 The above status is defined by https://www.iso.org/standard/80874.html[ISO 19115-3] as "_item is no longer recommended for use. It has not been superseded by another item_" footnote:[https://standards.iso.org/iso/19115/-3/mcc/1.0/codelists.html].
 
+Another aspect to consider reviewing all links in the WCMP2 record (``links`` object).  For example, MQTT links can be removed, and any links which no longer provide the data can also be removed.  If the data is retired and has alternative access mechanisms (email, web form), these links can be added to the record.
+
 === Validating a WMO Core Metadata Profile record
 
 The https://github.com/World-Meteorological-Organization/pywcmp[pywcmp] tool provides a test suite to validate a message against the WCMP2 specification requirements, as well as a Python API for application integration.  Consult the pywcmp README on GitHub for more information/examples.