Update first_script.zh-cn.md

[jifffffy]

fix kotlin implicitlyWait line number

Thanks for contributing to the Selenium site and documentation! A PR well described will help maintainers to review and merge it quickly

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Description

Motivation and Context

Types of changes

• [ ] Change to the site (I have double-checked the Netlify deployment, and my changes look good)
• [ ] 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.

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you all sign our Contributor License Agreement before we can accept your contribution.
1 out of 2 committers have signed the CLA.

:white_check_mark: diemol
:x: jifffffy
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

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[alaahong]

Hi, @sunyuyangg555

Thanks for your first contributed, can you help to take two more actions as Selenium required?

1. Please sign the CLA, there was one alert in above comment, you can follow the actions as mentioned;
2. Can you also do the same change on other language?

Thanks.

[harsha509]

hi @sunyuyangg555,

Did you got a chance to look into above comments!