docs: polish

Author: cloydlau

README.md

@@ -274,7 +274,7 @@ Detailed changes for each release are documented in the [release notes](https://
     - https://deno.land/#installation
     - https://x.deno.js.cn/#%E5%AE%89%E8%A3%85%E6%9C%80%E6%96%B0%E7%89%88
 
-2. `npm add @cloydlau/scripts pnpm -g`
+2. `npm add pnpm @cloydlau/scripts -g; pnpm i`
 
 3. Start
 

docs/README.zh-CN.md

@@ -274,7 +274,7 @@ type Mode = 'tree' | 'text'
     - https://deno.land/#installation
     - https://x.deno.js.cn/#%E5%AE%89%E8%A3%85%E6%9C%80%E6%96%B0%E7%89%88
 
-2. `npm add @cloydlau/scripts pnpm -g`
+2. `npm add pnpm @cloydlau/scripts -g; pnpm i`
 
 3. 启动