Add missing NEWS entry for r77422.
diff --git a/Misc/NEWS b/Misc/NEWS
index 1595214..3511fe9 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -16,6 +16,8 @@
 
 - Issue #2335: Backport set literals syntax from Python 3.x.
 
+- Issue #2333: Backport set and dict comprehensions syntax from Python 3.x.
+
 Library
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