diff highlighting

site/package-lock.json

@@ -1281,9 +1281,9 @@
       }
     },
     "@sveltejs/site-kit": {
-      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/@sveltejs/site-kit/-/site-kit-1.2.0.tgz",
-      "integrity": "sha512-C7puq+1so3fKPPZAnQJQlKfyCG6FsnSSFSS2LRIhWD8VK2FL5j8Eq7DIKSxUvWbGw1AsxnzO3dIHJWPB7fwjKg==",
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/@sveltejs/site-kit/-/site-kit-1.2.1.tgz",
+      "integrity": "sha512-5AhOCBcproHF5UbmuOIB9CiyAmG6BXOr2G4EjeeDz/tyo9myfnRKIgJSy26q8Zlw6TOlwxhzcAgvL5sgZF+IsA==",
       "dev": true,
       "requires": {
         "@sindresorhus/slugify": "^0.9.1",

site/package.json

@@ -36,7 +36,7 @@
     "@babel/preset-env": "^7.6.0",
     "@babel/runtime": "^7.6.0",
     "@sindresorhus/slugify": "^0.9.1",
-    "@sveltejs/site-kit": "^1.2.0",
+    "@sveltejs/site-kit": "^1.2.1",
     "@sveltejs/svelte-repl": "^0.2.0",
     "degit": "^2.1.4",
     "dotenv": "^8.1.0",

site/src/utils/highlight.js

@@ -1,6 +1,7 @@
 import { langs } from '@sveltejs/site-kit/utils/markdown.js';
 import PrismJS from 'prismjs';
 import 'prismjs/components/prism-bash';
+import 'prismjs/components/prism-diff';
 import 'prism-svelte';
 
 export function highlight(source, lang) {