Convert any URL to clean, formatted Markdown.
GET /convert?url=https://example.com
POST /convert
Content-Type: application/json
{ "url": "https://example.com" }
includeTitle — prepend h1 title (default: true)
onlyMainContent — use Readability extraction (default: true)
Default: raw markdown as text/markdown
Add header Accept: application/json for JSON with metadata.