Using the App Shortcuts I can automate opening a webpage. How could I automate the username and password too?

Hello all,

I have to open a webpage everyday on my iPad and sign in.

I was thinking it would be so much easier to automate. I have been looking at the app 'Shortcuts' which is really cool. I found I can automate a webpage to open by the document below.

However, how could I also add my username and password.

That would be really helpful. Thank you for any input

Open and create a shortcut using a URL scheme on iPhone or iPad - Apple Support (IN)