docs: update uno comments in vite.config.ts (#489)

vite.config.ts

@@ -70,7 +70,7 @@ export default defineConfig({
     }),
 
     // https://github.com/antfu/unocss
-    // see unocss.config.ts for config
+    // see uno.config.ts for config
     Unocss(),
 
     // https://github.com/antfu/vite-plugin-vue-markdown