Add Cloudflare Workers configuration

Author: cloudflare-workers-and-pages[bot]

.gitignore

@@ -3,3 +3,10 @@ dist/
 .astro/
 .DS_Store
 *.log
+
+# wrangler files
+.wrangler
+.dev.vars*
+!.dev.vars.example
+.env*
+!.env.example

astro.config.mjs

@@ -3,10 +3,15 @@ import react from '@astrojs/react';
 import sitemap from '@astrojs/sitemap';
 import tailwindcss from '@tailwindcss/vite';
 
+import cloudflare from '@astrojs/cloudflare';
+
 export default defineConfig({
   integrations: [react(), sitemap()],
+
   vite: {
     plugins: [tailwindcss()]
   },
+
   site: 'https://dev-tools.devtoolsite.workers.dev',
-});
+  adapter: cloudflare(),
+});