Create markprompt React component

[nicc]

@jackryanservia still investigating alternatives that don't have the Tailwind dependency that demands the component

[barriebyron]

spied on Twitter in the Markprompt announcement thread

explicit explanation of how embeddings are used in Markprompt (which seems based on the Supabase implementation): https://markprompt.com/docs#processing-your-content

shared in Write the Docs Slack (the cool place for tech writers to hang out)

https://markprompt.com/docs#quick-start