docs(v2): add sciwp to showcase

[edulazaro]

Motivation

Just adding the http://sciwp.com/ project to the showcase documentation websites

Have you read the Contributing Guidelines on pull requests?

Yes

Test Plan

Just added a new showcase websites; previous tests pass

Related PRs

Not the case

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[netlify]

❌ [V1] Deploy preview failure
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🔨 Explore the source changes: db66844

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[github-actions]

Size Change: 0 B

Total Size: 26.8 kB

ℹ️ View Unchanged

Filename	Size	Change
website/build/blog/2017/12/14/introducing-docusaurus/index.html	20.8 kB	0 B
website/build/docs/introduction/index.html	180 B	0 B
website/build/index.html	5.87 kB	0 B

_{compressed-size-action}

[netlify]

✔️ Deploy preview for docusaurus-2 ready!
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🔨 Explore the source changes: db66844

🔍 Inspect the deploy logs: https://app.netlify.com/sites/docusaurus-2/deploys/60005bbb456e940007394867

😎 Browse the preview: https://deploy-preview-4046--docusaurus-2.netlify.app

[github-actions]

⚡️ Lighthouse report for the changes in this PR:

Category	Score
🟠 Performance	88
🟢 Accessibility	99
🟢 Best practices	100
🟢 SEO	100
🟢 PWA	95

Lighthouse ran on https://deploy-preview-4046--docusaurus-2.netlify.app/classic/

[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!

[slorber]

LGTM thanks