S3 bucket credentials exposed

[legionhunter]

Hi, S3 bucket credentials S3_ACCESS_KEY_ID and S3_SECRET_ACCESS_KEY are exposed in your public github repo.

https://github.com/SinaCloudStorage/SinaStorage-SDK-Python/blob/2192dc3cb76fb792986242bf7b65e24bda5333b8/.travis.yml

Would recommend to remove it immediately for security reasons or misuse of it by malicious actors.Ignore this issue if the credentials are invalid or just for example.

Regards,
Abhirup Konwar