REST API Authentication Content

I am working on a native iOS app for learning purposes. With this app, it uses the Home Assistant REST API and authenticates following the documentation. Since this is a native iOS app I followed this specific piece in the documentation:

If you require a different redirect url (ie, if building a native app), you can add an HTML tag to the content of the website of your application (the client ID) with an approved redirect url. For example, add this to your site to whitelist redirect uri hass://auth

I am hosting that HTML using GitHub pages and that can be seen here. When the authentication screen is presented, the content says:

“You’re about to give https://tkess7.github.io access to your Home Assistant Instance.”

The companion app says something similar. Instead of the URL though it has the content “Home Assistant Companion app for iOS”. My question is, how can I modify the content to say that instead of the URL mine currently says?