docs (onboarding): clarified one step.

docs/onboarding.md

@@ -49,6 +49,8 @@ copy `./metropolis/local_settings_sample.py` to `./metropolis/local_settings.py`
 
 ##### Creating your account
 1. run `poetry run python ./manage.py createsuperuser` and enter the values
-2. Look in your console to see the email that was printed out and find the email confirmation url
-3. paste that url into your browser
-4. sign in using the values you provided in step 1
+2. run the server and go to the link provided in the terminal
+3. click the login button and sign in using the credentials you provided in step 1
+4. Look in your console to see the email that was printed out and find the email confirmation url
+5. paste that url into your browser
+6. sign in using the values you provided in step 1