Added basic use cases pages

www/astro.config.mjs

@@ -1,8 +1,8 @@
 // @ts-check
 import { defineConfig } from 'astro/config';
 import tailwindcss from '@tailwindcss/vite';
-
 import react from '@astrojs/react';
+import mdx from '@astrojs/mdx';
 
 // https://astro.build/config
 export default defineConfig({
@@ -10,5 +10,5 @@ export default defineConfig({
       plugins: [tailwindcss()]
 	},
 
-  integrations: [react()]
-});
+  integrations: [react(), mdx()]
+});