With the WiFi Dongle plugged in and the Raspberry Pi powered up we should see a Wifi connection labeled Pi_AP or what you had renamed the SSID to earlier. Select that network to connect to. Depending on your device used you might get a no internet connection warning.
In your web browser go library.local this may be different if you used a different hostname.
The library.local link works for most web browsers that I tested except Microsoft Edge. On the Edge browser you need to put in the IP adress. From an earlier step we set that to 192.168.42.1