pricing/checkout: add info about AWS Marketplace

Author: iangrunt

pages/checkout/_need-help.html

@@ -5,4 +5,14 @@ <h2 class="need-help-text">Need help deciding?</h2>
       >Contact Sales</a
     >
   </div>
+<div class="row row-page-header padding-top-none">
+  <div class="col-xs-12 col-md-8 col-md-offset-2">
+    <p class="text-center text-muted small">
+      Discounted pricing is available for non-profits, educational institutions,
+      and startups with fewer than 10 employees. Additionally, use your AWS
+      credits to purchase Gruntwork through our Marketplace listing.
+      <a href="/contact/">Contact us</a> to get the discounted pricing.
+    </p>
+  </div>
+</div>
 </div>

pages/pricing/_terms.html

@@ -2,7 +2,8 @@
   <div class="col-xs-12 col-md-8 col-md-offset-2">
     <p class="text-center text-muted small">
       Discounted pricing is available for non-profits, educational institutions,
-      and startups with fewer than 10 employees.
+      and startups with fewer than 10 employees. Additionally, use your AWS
+      credits to purchase Gruntwork through our Marketplace listing.
       <a href="/contact/">Contact us</a> to get the discounted pricing.
     </p>
   </div>