docs(v2): Fix typo in installation.md

[dichotommy]

Motivation

My father was killed by a rogue typo

Have you read the Contributing Guidelines on pull requests?

Nope

Test Plan

Related PRs

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[netlify]

[V2]

Built without sensitive environment variables with commit 4f46528

https://deploy-preview-4643--docusaurus-2.netlify.app

[github-actions]

⚡️ Lighthouse report for the changes in this PR:

Category	Score
🟠 Performance	76
🟢 Accessibility	96
🟢 Best practices	100
🟢 SEO	100
🟢 PWA	95

Lighthouse ran on https://deploy-preview-4643--docusaurus-2.netlify.app/

[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]

thanks 👍