Documented --output and --waiter in README.md

[robertvolkmann]

Copied and translate from chinese version.

[CLAassistant]

All committers have signed the CLA.

[codecov-commenter]

Codecov Report

Merging #305 into master will not change coverage. The diff coverage is n/a.

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##           master     #305   +/-   ##
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  Coverage   87.63%   87.63%           
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  Files          50       50           
  Lines        3131     3131           
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  Hits         2744     2744           
  Misses        262      262           
  Partials      125      125           

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[night556]

Thank you for your PR. The CLI README is just a brief and common description. The specific documents are on the official website of Alibaba Cloud, and the link is already in README.md. We will not join the pr for the time being, but it will not be closed, thank you again for your PR.

[robertvolkmann]

I understand your point. Currently, some parts of the manual on the official website are outdated. For example, the parameters timeout and interval are missing in Results polling Exists plans to migrate the aliyun-cli documentation to the AlibabaCloudDocs? I would migrate some existing parts of the documentation.

[JacksonTian]

@night556 这个地方中英文文档不一致。需要解决一下。