feat: add syntax highlighting for code blocks

.eleventy.js

@@ -1,6 +1,8 @@
 const blogTools = require("eleventy-plugin-blog-tools");
 const markdownIt = require("markdown-it");
 const markdownItAttrs = require("markdown-it-attrs");
+const syntaxHighlight = require("@11ty/eleventy-plugin-syntaxhighlight");
+
 
 // Import prior to `module.exports` within `.eleventy.js`
 const { DateTime } = require("luxon");
@@ -40,7 +42,7 @@ module.exports = function(eleventyConfig) {
   });
 
   eleventyConfig.addPlugin(blogTools);
-
+  eleventyConfig.addPlugin(syntaxHighlight);
 
   return {
     passthroughFileCopy: true,