feat: add db changes in readme (#94)

README.md

@@ -97,6 +97,8 @@ git clone https://github.com/dreamhunter2333/cloudflare_temp_email.git
 # 创建 D1 并执行 schema.sql
 wrangler d1 create dev
 wrangler d1 execute dev --file=db/schema.sql
+# schema 更新，如果你在此日期之前初始化过数据库，可以执行此命令更新
+wrangler d1 execute dev --file=db/2024-01-13-path.sql
 ```
 
 创建完成后，我们在 cloudflare 的控制台可以看到 D1 数据库

README_EN.md

@@ -32,6 +32,8 @@ This is a temporary email service that uses Cloudflare Workers to create a tempo
 # create a database, and copy the output to wrangler.toml in the next step
 wrangler d1 create dev
 wrangler d1 execute dev --file=db/schema.sql
+# schema update, if you have initialized the database before this date, you can execute this command to update
+wrangler d1 execute dev --file=db/2024-01-13-path.sql
 ```
 
 ![d1](readme_assets/d1.png)