Add PR number to changelog. [skip ci]

zodb · May 21, 2021 · df9ec4d · df9ec4d
1 parent 1c37cee
commit df9ec4d
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/CHANGES.rst b/CHANGES.rst
@@ -7,7 +7,7 @@
 
 - Revert :issue:`469` and return to taking shared locks before
   exclusive locks. Testing in a large, busy application indicated that
-  performance was overall slightly worse this way.
+  performance was overall slightly worse this way. See :pr:`471`.
 
 
 3.5.0a1 (2021-05-17)