modify readme

README.md

@@ -148,7 +148,8 @@ If there is no code, clickable link, or this is an advertisement email, return:
 		When you execute the [Wrangler](https://developers.cloudflare.com/workers/wrangler/get-started/) login command for the first time, you will be prompted to log in. Just follow the prompts.
 
 		```bash
-		npx wrangler d1 execute inbox-d1 --local --file=./db/schema.sql # creating a d1 database called 'inbox-d1'
+		npx npx wrangler d1 create inbox-d1 # creating a d1 database called 'inbox-d1'
+		npx wrangler d1 execute inbox-d1 --local --file=./db/schema.sql # write the schema.sql to the database
 		```
 		you will get the result like this:
 		```bash

README_CN.md

@@ -146,7 +146,8 @@ If there is no code, clickable link, or this is an advertisement email, return:
       当你第一次执行 [Wrangler](https://developers.cloudflare.com/workers/wrangler/get-started/) 登录命令时，系统会提示你登录。按提示操作即可。
 
       ```bash
-      npx wrangler d1 execute inbox-d1 --local --file=./db/schema.sql # 创建名为 'inbox-d1' 的 d1 数据库
+      npx wrangler d1 create inbox-d1 # 创建名为 'inbox-d1' 的 d1 数据库
+      npx wrangler d1 execute inbox-d1 --local --file=./db/schema.sql # 执行 schema.sql 文件
       ```
       你将会看到如下结果：
       ```bash