add extra info on codespaces readme

Author: VillainsRule

README.md

@@ -112,7 +112,8 @@ As of January 1st, 2024, Replit is [no longer free](https://blog.replit.com/host
 3. In the terminal at the bottom, paste `pnpm i && pnpm start`.
 4. Respond to the application popup by clicking "Make public."
 > [!IMPORTANT]
-> Make sure you click the "Make public." button, or the proxy won't function properly.
+> Make sure you click the "Make public." button, or the proxy won't function properly.<br>
+> If you get a Range Error, go back and make sure you clicked Make public!
 5. Access the deployed website from the ports tab.
 6. For subsequent uses in the same codespace, just run `pnpm start`