v0.15.0-develop.6

🎉 This release contains work from new contributors! 🎉

Thanks for all your work!

❤️ Luke Watts (@thisislawatts)

❤️ Valto (@pointlessrapunzel)

🐛 Bug Fix

• @theme-ui/prism
  • fix(prism): fix peer dependency version (@hasparus)

🏠 Internal

• docs: re-order sidebar components into alphabetical order #2232 (@thisislawatts)
• docs: Specify MDX React version #2233 (@pointlessrapunzel)

Authors: 3

• Luke Watts (@thisislawatts)
• Piotr Monwid-Olechnowicz (@hasparus)
• Valto (@pointlessrapunzel)