Update confirmation_instructions.html.erb

Author: Budmin

app/views/devise/mailer/confirmation_instructions.html.erb

@@ -1,3 +1,3 @@
 <p>Click here to confirm your email.</p>
 <p><%= link_to 'Confirm my account', confirmation_url(@resource, confirmation_token: @token) %></p>
-<p>If you weren't expecting this email, please disregard</p>
+<p>If you weren't expecting this email, please disregard.</p>