Remove yarn documentation for this repo

[hola-soy-milk]

Closes #12

[vercel[bot]]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Updated
docs	✅ Ready (Inspect)	Visit Preview	Dec 20, 2022 at 1:07PM (UTC)

[github-actions[bot]]

4 total issues, 0 errors, and 4 warnings found for docs.suborbital.dev

Details

WARNING WCAG2AA.Principle1.Guideline1_3.1_3_1.H48 ```html

Skip to main content ``` This element has "position: fixed". This may require scrolling in two dimensions, which is considered a failure of this Success Criterion. ---
WARNING WCAG2AA.Principle1.Guideline1_4.1_4_3_F24.F24.FGColour ```html / ``` Check that this element has an inherited background colour or image to complement the corresponding inline foreground colour. ---
WARNING WCAG2AA.Principle1.Guideline1_4.1_4_3_F24.F24.FGColour ```html / ``` Check that this element has an inherited background colour or image to complement the corresponding inline foreground colour. ---

---

📝 docs | :octocat: repo | 🙋🏽‍♀️ issues | 🏪 marketplace | A11yWatch

[callahad]

Next step is closing #43 by excising mentions of Yarn from the docs themselves ;)