Sign-up Notification Email and Activation Link

[Bobby]

After much trial and error, I have finally successfully deployed the
app to Heroku! When I sign up as a new user however, I receive the
message as specified by the code in signup_notification.html.erb (see
below) but there is no activation link to click on. How would I go
about fixing this?

I am excited to see where things go from here.


from signup_notification.html.erb:

Your account has been created.

Username: <%= @user.login %>
Password: <%= @user.password %>

Visit this url to activate your account:

<%= @url %>

[Bobby]

To get things going, I added this line of code in
signup_notification.html.erb:

<%= link_to "http://your_app_name_here.com/activate?
activation_code=#{@user.activation_code}", "http://
your_app_name_here.com/activate?
activation_code=#{@user.activation_code}" %>