Description of changes:
Small update to the README to clarify that users must create the source bucket manually after running cdk deploy and before uploading audio files.
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Issue #, if available:
Description of changes: Small update to the README to clarify that users must create the
sourcebucket manually after runningcdk deployand before uploading audio files.By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.