Create custom shortcode for root shell

plugins/shortcode-custom/CustomPrismjs.php

@@ -0,0 +1,15 @@
+<?php
+namespace Grav\Plugin\Shortcodes;
+
+use Thunder\Shortcode\Shortcode\ShortcodeInterface;
+
+class CustomPrismjs extends Shortcode
+{
+    public function init()
+    {
+        $this->shortcode->getHandlers()->add('sh-root', function(ShortcodeInterface $sc) {
+            return '<pre class="command-line language-sh" data-prompt="#" data-continuation-str="\" tabindex="0"><code class="language-sh">'.$sc->getContent().'</code></pre>';
+        });
+    }
+}
+?>

plugins/shortcode-custom/CustomShortcodes.php

@@ -0,0 +1,3 @@
+<?php 
+include('CustomPrismjs.php');
+?>