add NotImplementError in __iter__ IterContainer information to changes.rst
@@ -4,6 +4,9 @@ Changes
Version 1.7.8
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+* Add NotImplementedError to IterContainer's __iter__
+ By :user:`arturponinski`, :issue:`483`.
+
* Add casting of headers to strings in toxlsx and appendxlsx
By :user:`arturponinski`, :issue:`530`.
