update comment

Author: rl-devops

README.md

@@ -88,6 +88,12 @@ Raise an issue https://github.com/DannyCork/python-whois/issues/new
  * refresh testdata now that tld has dot instead of _ if more then one level
  * add additional strings meaning domain does not exist
 
+2023-02-02: maarten_boot
+ * whois.QuotaStringsAdd(str) to add additional strings for over quota detection
+   whois.QuotaStrings() lists the current configured strings
+ * whois.NoneStringsAdd(str) to add additional string for NoSuchDomainExists detection (whois.query() retuning None)
+   whois.NoneStrings() lsts the current configured strings
+
 ## Support
  * Python 3.x is supported.
  * Python 2.x IS NOT supported.