chore: fix typo and auto clean dir on global build

Author: fengmk2

README.md

@@ -3,7 +3,8 @@
 ## Pull upstream dependencies
 
 ```
-pnpm tools sync-remote
+pnpm tool sync-remote
+pnpm install
 ```
 
 ## Build Vite+ and upstream dependencies

packages/global/rolldown.config.ts

@@ -15,5 +15,6 @@ export default defineConfig({
   output: {
     format: 'esm',
     dir: './dist',
+    cleanDir: true,
   },
 });