Set noHighlightRe option

The other options needed to be defined as well.

_config.ts

@@ -56,6 +56,12 @@ site.use(code_highlight({
     javascript: lang_javascript,
     bash: lang_bash,
   },
+  options: {
+    noHighlightRe: /^no-highlight$/i,
+    languageDetectRe: /\blanguage-([\w-]+)\b/i,
+    classPrefix: "hljs-",
+    cssSelector: "pre code",
+  },
 }));
 site.use(toc({
   slugify: {