Update missed generator to use correct grammar for "send password reset" button (#5824)

This mirrors #5515

Author: G-Rath

lib/generators/templates/simple_form_for/passwords/new.html.erb

@@ -11,7 +11,7 @@
   </div>
 
   <div class="form-actions">
-    <%= f.button :submit, "Send me reset password instructions" %>
+    <%= f.button :submit, "Send me password reset instructions" %>
   </div>
 <% end %>