Arturo Montejo Ráez / WBT2425_0

The user clicks in a "Create a new account" link in the main page
A form with basic details (email, password and confirm password) is shown
The system will check that the password is at least 8 characters long and contains uppercase and lowercase letters, at least a number, and at least a special character
The system will check that the email has a correct form (xxxxx@xxx.xxx)
The user clicks on the "Submit" button
If the email is already registered, a warning is shown and the registration process finalizes without success
If everything is correct, a notification is shown
The registration process finalizes successfully

added TODO label

User story 1: User registration