Update calendly to email now

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

Author: alexellis

_includes/support-page/support-poc.html

@@ -15,9 +15,9 @@ <h1 class="text-align: left; title has-text-weight-light is-size-4 is-size-4-des
                         Book a consultation with one of our experts today to get help and feedback.
                     </h1>
 
-                    <a href="https://calendly.com/alexellis/" target="_top" class="button is-primary is-large">
+                    <a href="mailto:contact@openfaas.com" target="_top" class="button is-primary is-large">
                         <span class="icon"><i class="fas fa-envelope-open-text"></i></span>
-                        <span>BOOK NOW</span>
+                        <span>EMAIL NOW</span>
                     </a>
                 </div>
             </div>