_markupbase.py: Use a permalink for the analysis of MS-Word extensions (GH-129017)

Update _markupbase.py

diff --git a/Lib/_markupbase.py b/Lib/_markupbase.py
index 3ad7e279960f7e1f2bf79d89fe9b905e53f6a12b..614f0cd16ddb44e73b8990da2e78ae3423adec82 100644 (file)
--- a/Lib/_markupbase.py
+++ b/Lib/_markupbase.py
@@ -13,7 +13,7 @@ _commentclose = re.compile(r'--\s*>')
 _markedsectionclose = re.compile(r']\s*]\s*>')
 
 # An analysis of the MS-Word extensions is available at
-# http://www.planetpublish.com/xmlarena/xap/Thursday/WordtoXML.pdf
+# http://web.archive.org/web/20060321153828/http://www.planetpublish.com/xmlarena/xap/Thursday/WordtoXML.pdf
 
 _msmarkedsectionclose = re.compile(r']\s*>')