Updated Changelog with topic as optional argument
@@ -11,6 +11,10 @@ Changes
sub directory of the current working directory + the directory of the
started service (or services) were monitored.
+- The ``topic`` argument to the ``@tomodachi.aws_sns_sqs`` decorator is
+ now optional, which is useful if subscribing to a SQS queue where the SNS
+ topic or the topic subscriptions are set up apart from the service code,
+ for example during deployment or as infra.
0.21.4 (2021-07-26)
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