show supported sites

views/supported-sites.pug

@@ -0,0 +1,9 @@
+extends layout.pug
+
+block content
+  if req.headers.referer
+    span.is-size-3(style='margin-top: 0; padding-top: 0;')
+      a(href=req.headers.referer) < Back
+  ul
+    for site of _CC.require('get-product-name').sites
+      li= site.name

views/wishlist.pug

@@ -178,7 +178,7 @@ block content
                       input.inline.button(type='submit' value='Move item down')
   form(method='POST')
     .field
-      label.label Item URL or Name
+      label.label Item URL or Name (<a href="/supported-sites">Supported Sites</a>)
       .control.has-icons-left
         input.input(
           type='text',