Add nvm note in README (#239)

README.md

@@ -88,7 +88,7 @@ Run `npx knex` commands from within the `back-end` folder, which is where the `k
 1. Update the `./back-end/.env` file with the connection URL's to your PostgreSQL database instance.
 1. Run `cp ./front-end/.env.sample ./front-end/.env`.
 1. You should not need to make changes to the `./front-end/.env` file unless you want to connect to a backend at a location other than `http://localhost:5001`.
-1. Run `npm install` to install project dependencies.
+1. Run `npm install` to install project dependencies. **Note:** If you are having problems installing this project with Node 18 try using Node 16 instead (`nvm use 16`).
 1. Run `npm run start:dev` to start your server in development mode.
 
 If you have trouble getting the server to run, reach out for assistance.