[ENHANCEMENT] Add link to signup in case of negative answer to question "Do you already have an Alchemy account?"

[artemd24]

When I answer to the question "Do you already have an Alchemy account?" negatively cli redirects me to the login page, more accurately to https://auth.alchemy.com/?a=create-web3-dapp, it's better to add link to signup

I've already fixed it locally, so I can create a pr for this changes