Add newline to EOF (#442)

_includes/ext-css.html

@@ -4,4 +4,4 @@
   <link rel="stylesheet" href="{{ include.css.href }}" />
 {% else %}
   <link rel="stylesheet" href="{{ include.css }}" />
-{% endif %}
+{% endif %}

_includes/gtm_body.html

@@ -3,4 +3,4 @@
     <noscript><iframe src="https://www.googletagmanager.com/ns.html?id={{ site.gtm }}"
     height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
     <!-- End Google Tag Manager (noscript) -->
-{% endif %}
+{% endif %}

_includes/gtm_head.html

@@ -6,4 +6,4 @@
     'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
     })(window,document,'script','dataLayer','{{ site.gtm }}');</script>
     <!-- End Google Tag Manager -->
-{% endif %}
+{% endif %}

_includes/header.html

@@ -73,4 +73,4 @@
 
 {% else %}
 <div class="intro-header"></div>
-{% endif %}
+{% endif %}