chore(docs): Generated API Reference (#3211)

Co-authored-by: olivermrbl <olivermrbl@users.noreply.github.com>

docs/api/admin/code_samples/JavaScript/collections/get.js

@@ -0,0 +1,7 @@
+import Medusa from "@medusajs/medusa-js"
+const medusa = new Medusa({ baseUrl: MEDUSA_BACKEND_URL, maxRetries: 3 })
+// must be previously logged in or use api token
+medusa.admin.collections.list()
+.then(({ collections, limit, offset, count }) => {
+  console.log(collections.length);
+});