adjusted backend readme

Author: sierrawelsch

backend/README.md

@@ -20,4 +20,4 @@
 
 1. Checkout the API endpoints in the ```persons``` controller using Postman
 2. Hit the ```/new``` endpoint to add yourself to the DB!
-3. Sign into your MongoDB account in the browser and verify that your name appears in the collection!
+3. Sign into your MongoDB account or connect to MongoDB via VSCode in the browser and verify that your name appears in the collection!