update NEWS to the current content of the PR

Lenormju · Lenormju · commit 079374086b0e · 2026-07-18T17:36:52.000+02:00
diff --git a/Misc/NEWS.d/next/Documentation/2026-07-17-22-33-43.gh-issue-118150.m7iFdP.rst b/Misc/NEWS.d/next/Documentation/2026-07-17-22-33-43.gh-issue-118150.m7iFdP.rst
@@ -1,3 +1,2 @@
-Clarify in the :mod:`difflib` documentation that both a custom *isjunk*
-predicate and the *autojunk* heuristic of :class:`~difflib.SequenceMatcher`
-can treat ``(a, b)`` and ``(b, a)`` differently.
+Clarify in the :mod:`difflib` documentation what *junk* actually does, its
+drawbacks, and how to control it.
