Adding button to delete the user accoutnt
Adding the delete method for the user.
Creating file html to delete account
Adding snippet of code to delete user.
Creating new file destroy.html.erb
Fixing the destroy.html.erb
Adding test to destroy.html.erb
Modifying snippets of code of controllers test
Creating tests of Routes User.
Adding new tests in Routes to User.
minor fixes in the spec/controller/users_controller, and an improvement in the view users/destroy.html.erb