Update doc reference to chime-sdk

[ltrung]

Description of changes: Update documentation reference to chime-sdk and Chime meeting SDK as the old Amazon Chime SDK is deprecated.

Testing:

Can these tested using a demo application? Please provide reproducible step-by-step instructions. N/A

Checklist:

1. Have you successfully run npm run build:release locally? Yes

2. Do you add, modify, or delete public API definitions? If yes, has that been reviewed and approved? No

3. Do you change the wire protocol, e.g. the request method? If yes, has that been reviewed and approved? No

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[xuesichao]

Do we also need to update our demo server code later?

[ltrung]

Do we also need to update our demo server code later?

Yep. but we have to update all our canaries too so just update the documentation to remove reference to deprecated code first.