Update help message on USERNAME and PASSWORD

IBM / Train-Custom-Speech-Model

Create a custom Watson Speech to Text model using specialized domain data

https://developer.ibm.com/patterns/customize-and-continuously-train-your-own-watson-speech-service/

Apache License 2.0

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Update help message on USERNAME and PASSWORD #26

Closed tonanhngo closed 5 years ago

tonanhngo commented 5 years ago

The python scripts can use either the old USERNAME/PASSWORD credential or the new IAM API key. Add help message to show how to use API key by setting them in the USERNAME/PASSWORD environment variables. Resolve issue #23