add markdown export page

Author: ethanpalm

ai/markdown-export.mdx

@@ -0,0 +1,21 @@
+---
+title: "Markdown export"
+description: "Quickly get Markdown versions of pages"
+icon: "file-text"
+---
+
+import { PreviewButton } from "/snippets/previewbutton.jsx"
+
+Markdown provides structured text that AI tools can process more efficiently than HTML, which results in better response accuracy, faster processing times, and lower token usage.
+
+Mintlify automatically generates Markdown versions of pages that are optimized for AI tools and external integrations.
+
+## .md URL extension
+
+Add `.md` to any page's URL to view a Markdown version.
+
+<PreviewButton href="https://mintlify.com/docs/ai/markdown-export.md">Open this page as Markdown</PreviewButton>
+
+## Keyboard shortcut
+
+Press <kbd>Command</kbd> + <kbd>C</kbd> (<kbd>Ctrl</kbd> + <kbd>C</kbd> on Windows) to copy a page as Markdown to yourclipboard.