chore: README.md

README.md

@@ -8,6 +8,11 @@ ChartGPT demo page built with express and vue3
 ## Usage
 > Make sure `node >= 18`
 
+If pnpm is not installed
+```shell
+npm install pnpm -g
+```
+
 install node deps
 ```shell
 pnpm install

README.zh-CN.md

@@ -9,6 +9,11 @@
 ## 使用
 > Make sure `node >= 18`
 
+如果你没有安装过 `pnpm`
+```shell
+npm install pnpm -g
+```
+
 安装依赖
 ```shell
 pnpm install