feat(footer): change the cta to skill assessment

Author: dandenney

views/shared/_dc_footer.ejs

@@ -1,9 +1,9 @@
 <% if (dcBanner) { %>
 <div class="dc-footer">
   <span class="dc-footer--text">
-    Learn R at work
+    Put your R skills to the test
   </span>
-  <a class="dc-footer--link btn btn-primary" href="https://www.datacamp.com/groups/business">Try it free</a>
+  <a class="dc-footer--link btn btn-primary" href="https://www.datacamp.com/signal">Start Now</a>
   <span class="dc-footer--cross"><i class="fa fa-times" aria-hidden="true"></i></span>
 </div>
 <% }%>