Add authentication

app/views/passwords/edit.html.erb

@@ -0,0 +1,9 @@
+<h1>Update your password</h1>
+
+<%= tag.div(flash[:alert], style: "color:red") if flash[:alert] %>
+
+<%= form_with url: password_path(params[:token]), method: :put do |form| %>
+  <%= form.password_field :password, required: true, autocomplete: "new-password", placeholder: "Enter new password", maxlength: 72 %><br>
+  <%= form.password_field :password_confirmation, required: true, autocomplete: "new-password", placeholder: "Repeat new password", maxlength: 72 %><br>
+  <%= form.submit "Save" %>
+<% end %>