Create head_custom.html (#128)

* Create head_custom.html

Move things to head_custom.html

* Update default.html

remove scripts that move to custom_head

* Delete _layouts/default.html

* Remove Google Tag Manager script

* Update _config.yml

change from analytics to GTM

Author: gkorland

_config.yml

@@ -3,7 +3,7 @@ title: FalkorDB Docs
 description: The FalkorDB documentation
 logo: "/images/falkor-logo.png"
 favicon_ico: "/images/favicon.ico"
-ga_tracking: G-0V4CX90653
+ga_tracking: GTM-MBWB627H
 
 search_enabled: true
 color_scheme: dark

_includes/head_custom.html

@@ -0,0 +1,4 @@
+<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.10.0/styles/atom-one-dark.min.css">
+<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.10.0/highlight.min.js"></script>
+<script>hljs.highlightAll();</script>
+