PEP 505: Resolve unreferenced footnotes (#3243)

pep-0505.rst

@@ -1,7 +1,5 @@
 PEP: 505
 Title: None-aware operators
-Version: $Revision$
-Last-Modified: $Date$
 Author: Mark E. Haase <mehaase@gmail.com>, Steve Dower <steve.dower@python.org>
 Status: Deferred
 Type: Standards Track
@@ -236,7 +234,7 @@ conversion to use ``None``-aware operators may look like.
 Standard Library
 ----------------
 
-Using the ``find-pep505.py`` script[5]_ an analysis of the Python 3.7 standard
+Using the ``find-pep505.py`` script [5]_ an analysis of the Python 3.7 standard
 library discovered up to 678 code snippets that could be replaced with use of
 one of the ``None``-aware operators::
 
@@ -844,7 +842,7 @@ References
 ==========
 
 .. [1] C# Reference: Operators
-   (https://msdn.microsoft.com/en-us/library/6a71f45d.aspx)
+   (https://learn.microsoft.com/en/dotnet/csharp/language-reference/operators/)
 
 .. [2] A Tour of the Dart Language: Operators
    (https://www.dartlang.org/docs/dart-up-and-running/ch02.html#operators)
@@ -862,14 +860,3 @@ Copyright
 =========
 
 This document has been placed in the public domain.
-
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