Override simple confirmation instructions

config/locales/spotlight.en.yml

@@ -11,3 +11,8 @@ en:
       invitation_instructions:
         someone_invited_you: "The SUL Exhibits Administrator has invited you to join the administrative group that manages the SUL online exhibits. You can accept this invitation by clicking the link below."
         ignore_html: "If you don't want to accept the invitation, please ignore this email. You won't be made a SUL online exhibits administrator until you access the link above."
+      confirmation_mailer:
+        confirmation_instructions:
+          welcome: "Welcome to Spotlight at Stanford, an application for showcasing digital content in easy-to-produce exhibits."
+          instructions: "You have been added as a curator for a Spotlight at Stanford exhibit. Before working on this exhibit, you'll need to confirm the email address that was used to add you to this exhibit by clicking on the link below."
+          confirm: Confirm my account