add facebook tracking code

view/analytics/subFacebook.php

@@ -0,0 +1,14 @@
+<!-- Facebook Pixel Code -->
+<script>
+!function(f,b,e,v,n,t,s){if(f.fbq)return;n=f.fbq=function(){n.callMethod?
+n.callMethod.apply(n,arguments):n.queue.push(arguments)};if(!f._fbq)f._fbq=n;
+n.push=n;n.loaded=!0;n.version='2.0';n.queue=[];t=b.createElement(e);t.async=!0;
+t.src=v;s=b.getElementsByTagName(e)[0];s.parentNode.insertBefore(t,s)}(window,
+document,'script','//connect.facebook.net/en_US/fbevents.js');
+
+fbq('init', '1618717031725766');
+fbq('track', "Lead");</script>
+<noscript><img height="1" width="1" style="display:none"
+src="https://www.facebook.com/tr?id=1618717031725766&ev=PageView&noscript=1"
+/></noscript>
+<!--End Facebook Pixel Code--> 

view/mail/joinList.php

@@ -8,6 +8,7 @@
     <div class="notice notice-error spacer1"><?php echo $error ?></div>
   <?php elseif ($success): ?>
     <?php echo View::render('analytics/subTwitter') ?>
+    <?php echo View::render('analytics/subFacebook') ?>
     <div class="notice notice-success spacer1"><?php echo $success ?></div>
   <?php endif ?>
   <div class="mail-submit">