Fix link

Signed-off-by: Juan Cruz Viotti <jv@jviotti.com>

Author: jviotti

content/_index.html

@@ -26,7 +26,7 @@ <h2 class="fw-lighter d-none d-lg-block">
       <div class="d-flex flex-wrap gap-3">
         <a class="btn btn-lg btn-primary" href="https://one.sourcemeta.com/getting-started" role="button">
           <i class="bi bi-rocket-takeoff me-1"></i> Deploy for Free</a>
-        <a class="btn btn-lg btn-light border" href="{{ .Site.Params.calendarURL }}" role="button">
+        <a class="btn btn-lg btn-light border" href="{{< calendar-url >}}" role="button">
           <i class="bi bi-calendar-event me-1"></i> Talk to an Expert</a>
       </div>
       <span class="d-inline-flex align-items-center text-muted fw-light ms-lg-2"><img src="eu.svg" alt="European Union flag" height="38" class="me-3"> An European Union company, independently owned</span>

layouts/shortcodes/calendar-url.html

@@ -0,0 +1 @@
+{{- .Site.Params.calendarURL -}}