append index.md to the end of the external links

Author: kodster28

src/components/CopyPageButton.tsx

@@ -60,7 +60,8 @@ export default function CopyPageButton() {
 
 	const handleExternalAI = (url: string, vendor: string) => {
 		const externalAIURL = url;
-		const prompt = `Read this page from the Cloudflare docs: ${encodeURIComponent(window.location.href)} and answer questions about the content.`;
+		const indexMdUrl = new URL("index.md", window.location.href).toString();
+		const prompt = `Read this page from the Cloudflare docs: ${encodeURIComponent(indexMdUrl)} and answer questions about the content.`;
 		track("clicked copy page button", {
 			value: "docs ai",
 			label: vendor,