services/identity: Add Terms of Service to caveats page.

Change-Id: I7d545a4c8a5400ddd8b9228c3dd5718062318878
diff --git a/services/identity/internal/templates/caveats.go b/services/identity/internal/templates/caveats.go
index 466cf7e..67a4ff9 100644
--- a/services/identity/internal/templates/caveats.go
+++ b/services/identity/internal/templates/caveats.go
@@ -145,6 +145,11 @@
 with. Thus, if your email address is in the blessing name, it will be visible
 to peers you share the blessing with.
   </div>
+  <br>
+  <div>
+  By clicking "Bless", you consent to be bound by Google's general <a href="https://www.google.com/intl/en/policies/terms/">Terms of Service</a>
+  and Google's general <a href="https://www.google.com/intl/en/policies/privacy/">Privacy Policy</a>
+  </div>
   <div class="grid">
     <button class="cell button-passive" type="submit">Bless</button>
     <button class="cell button-passive" id="cancel">Cancel</button>