#19953: Clarify the wording of the augmented assignment discussion.

Patch by Priya Pappachan, based on suggestions from Terry Reedy
and myself.
diff --git a/Doc/faq/programming.rst b/Doc/faq/programming.rst
index 42e55d6..280d5e1 100644
--- a/Doc/faq/programming.rst
+++ b/Doc/faq/programming.rst
@@ -1103,6 +1103,7 @@
 
    result = [obj.method() for obj in mylist]
 
+.. _faq-augmented-assignment-tuple-error:
 
 Why does a_tuple[i] += ['item'] raise an exception when the addition works?
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