Add scam warning to purchase modal

js/languages/en_US.json

@@ -1222,6 +1222,7 @@
     "memoPlaceholder": "Provide additional details for the vendor here (optional).",
     "pay": "PAY >",
     "payNote": "Clicking pay will advance you to the final step.",
+    "scamWarning": "WARNING: Protect against scams",
     "pending": "Pending…",
     "pendingNote": "Please fund the order to complete your transaction.",
     "close": "close",

js/templates/modals/purchase/actionBtn.html

@@ -36,12 +36,13 @@ <h3>
     </div>
   <% } %>
 </div>
-<div class="padSm txSm txCtr clrT2">
+<div class="padSm flexColRows gutterVSm txSm txCtr clrT2">
   <% if (ob.phase === 'pay' || ob.phase === 'confirm') { %>
     <span class="js-payNote"><%= ob.polyT('purchase.payNote') %></span>
   <% } else if (ob.phase ==='pending') { %>
     <span class="js-pendingNote"><%= ob.polyT('purchase.pendingNote') %></span>
   <% } else if (ob.phase ==='complete') { %>
     <span class="js-closeNote"><%= ob.polyT('purchase.closeNote') %></span>
   <% } %>
+  <a class="clrTErr txU" href="https://scamprevention.openbazaar.org"><%= ob.polyT('purchase.scamWarning') %></a>
 </div>