fix URL in CTA button (#159)

Author: colinwilson

layouts/partials/landing/hero.html

@@ -62,7 +62,7 @@ <h4 class="heading mt-0 mb-3">
 
                     <div class="mt-3">
                         {{ with .ctaButton }}
-                            <a href="{{ relLangURL .Site.Data.landing.hero.ctaButton.url }}" class="btn btn-lg btn-primary me-2 mt-2">
+                            <a href="{{ relLangURL .url }}" class="btn btn-lg btn-primary me-2 mt-2">
                                 {{ with .icon }}
                                     <span class="material-icons align-middle">{{ . }}</span>
                                 {{ end }}