move old docs over

site/src/routes/docs/index.json.js

@@ -0,0 +1,14 @@
+import send from '@polka/send';
+import get_sections from './_sections.js';
+
+let json;
+
+export function get(req, res) {
+	if (!json || process.env.NODE_ENV !== 'production') {
+		json = JSON.stringify(get_sections()); // TODO it errors if I send the non-stringified value
+	}
+
+	send(res, 200, json, {
+		'Content-Type': 'application/json'
+	});
+}