Add Plus(ThinkSNS+) open source website.

[medz]

Hi, I'm using Docusaurus for another open source project documentation site, but this project is mainly for Chinese users.

Repo: https://github.com/slimkit/plus

Document: https://slimkit.github.io

[facebook-github-bot]

Thank you for your pull request and welcome to our community. We require contributors to sign our Contributor License Agreement, and we don't seem to have you on file. In order for us to review and merge your code, please sign up at https://code.facebook.com/cla. If you are contributing on behalf of someone else (eg your employer), the individual CLA may not be sufficient and your employer may need the corporate CLA signed.

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[yangshun]

Thanks! There were some syntax errors in your edited file which I fixed. I'll merge after the Netlify preview is generated and we verify that it looks ok 😄

@medz Please sign the CLA before we can merge this.

[docusaurus-bot]

Deploy preview for docusaurus-preview ready!

Built with commit 226437b

https://deploy-preview-903--docusaurus-preview.netlify.com

[medz]

@yangshun Thinks, I was careless when editing the document. Sorry!

[yangshun]

@medz Np, could you sign the CLA?

[facebook-github-bot]

Thank you for signing our Contributor License Agreement. We can now accept your code for this (and any) Facebook open source project. Thanks!

[medz]

@yangshun Sorry, because China has some network reasons, signing CLA takes a lot of time.