feat: inject markdown ast plugins into astro config

astro.config.mjs

@@ -1,11 +1,16 @@
-// @ts-check
 import { defineConfig } from 'astro/config';
+import tailwind from '@astrojs/tailwind';
+import remarkMath from 'remark-math';
+import rehypeKatex from 'rehype-katex';
+import rehypePrettyCode from 'rehype-pretty-code';
 
-import tailwindcss from '@tailwindcss/vite';
-
-// https://astro.build/config
 export default defineConfig({
-  vite: {
-    plugins: [tailwindcss()]
-  }
-});
+ integrations: [tailwind()],
+ markdown: {
+   remarkPlugins: [remarkMath],
+   rehypePlugins: [
+	 rehypeKatex,
+	 [rehypePrettyCode, { theme: 'github-dark' }]
+   ]
+ }
+});