docs(v2): Add AgileTs site to showcase page

[bennobuilder]

Motivation

Showcasing an open source project that uses docusaurus v2 for documentation.

Have you read the Contributing Guidelines on pull requests?

Yes

Test Plan

Changes have been tested on the Docusuaurs V2 website locally. (yarn run start:v2)

Related PRs

No Related PRs

[github-actions]

Size Change: +9 B (0%)

Total Size: 156 kB

ℹ️ View Unchanged

Filename	Size	Change
website/build/blog/2017/12/14/introducing-docusaurus/index.html	20.7 kB	+1 B (0%)
website/build/docs/introduction/index.html	180 B	0 B
website/build/index.html	5.82 kB	+1 B (0%)
website/build/main.********.js	112 kB	+7 B (0%)
website/build/styles.********.css	17.6 kB	0 B

_{compressed-size-action}

[netlify]

✔️ Deploy preview for docusaurus-2 ready!

🔨 Explore the source changes: 62bcadb

🔍 Inspect the deploy logs: https://app.netlify.com/sites/docusaurus-2/deploys/5ff333e1872fa70007977dd7

😎 Browse the preview: https://deploy-preview-3987--docusaurus-2.netlify.app

[slorber]

thanks, LGTM 👍

Just updated the img extension as the .PNG in uppercase makes CI fail

[bennobuilder]

ohh ok.. thank's sry for the circumstances

[github-actions]

⚡️ Lighthouse report for the changes in this PR:

Category	Score
🟠 Performance	84
🟢 Accessibility	99
🟢 Best practices	100
🟢 SEO	100
🟢 PWA	95

Lighthouse ran on https://deploy-preview-3987--docusaurus-2.netlify.app/classic/