docs: update `hosting.md` with Vercel hosting instructions (#406)

Zane Helton

2023-08-23 632c27b7ec133d15d890eb28c98eb9716ca01407

 quartz/plugins/emitters/index.ts

@@ -3,3 +3,6 @@
export { FolderPage } from "./folderPage"
export { ContentIndex } from "./contentIndex"
export { AliasRedirects } from "./aliases"
export { Assets } from "./assets"
export { Static } from "./static"
export { ComponentResources } from "./componentResources"