Add Chinese translation of "captchas"

[alaahong]

Description

Add Chinese translation of "captchas"

• worst_practices/captchas.zh-cn.md

Motivation and Context

Types of changes

• Change to the site (I am attaching a screenshot showing the before and after)
• Code example added (and I also added the example to all translated languages)
• Improved translation
• Added new translation (and I also added a notice to each document missing translation)

Checklist

• I have read the contributing document.
• I have used hugo to render the site/docs locally and I am sure it works.

[claassistantio]

All committers have signed the CLA.

[alaahong]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
You have signed the CLA already but the status is still pending? Let us recheck it.

license/cla — Contributor License Agreement is signed.

[diemol]

Thank you @alaahong!