update(query): change amazonaws.cn links to aws.amazon.com

[connorg]

Closes: no issue filed, but i can file one if required

Reason for Proposed Changes

• Most AWS queries link to docs.aws.amazon.com. Two link to docs.amazonaws.cn.
• Consistency seems preferable in any case. But these particular links can be a problem in highly-restrictive network environments where users are unable to resolve or access region-specific documentation such as subdomains of .cn.

Proposed Changes

• Change textual occurrences of docs.amazonaws.cn to docs.aws.amazon.com
  • I'm not familiar with any auto-generation scripts for docs, but updated the text throughout the repository in hopes that that does the trick.

I submit this contribution under the Apache-2.0 license.