Update upsell copy.

LMS-1127

lms/templates/dashboard/dashboard_course_listing.html

@@ -117,7 +117,7 @@
             </div>
 
             <div class="wrapper-extended">
-                <p class="message-copy">${_("Praesent commodo cursus magna, vel scelerisque nisl consectetur et. Integer posuere erat a ante venenatis dapibus posuere velit aliquet. Learn more about the  {a_start} verified certificate {a_end} track").format(a_start='<a href="{}">'.format(marketing_link('WHAT_IS_VERIFIED_CERT')), a_end="</a>")}</p>
+                <p class="message-copy">${_("You can still sign up for an ID verified certificate for this course. If you plan to complete the whole course, it is a great way to recognize your achievement. {a_start}Learn more about verified certificates{a_end}.").format(a_start='<a href="{}">'.format(marketing_link('WHAT_IS_VERIFIED_CERT')), a_end="</a>")}</p>
 
               <ul class="actions message-actions">
                 <li class="action-item">