Change the registration/login page

I want to know how I can change my registration or login page from wordpress page to my blog site page. For example when I press the registration page on my website, it directs to this design of wordpress,
https://www.blogcroak.com/wp-login.php?action=register
While I want the format of my own website design page e.g., check this registration page of a website: https://www.sharingit.co.uk/signup.php.
If it is possible kindly let me know, thanks.