Update migration (#1307)

* Update migration

* updated

* fix link

* update toc

* updated

* Update tutorials/zh-cn/migrationB.md

Co-authored-by: GZ <[email protected]>

* Update tutorials/zh-cn/migrationB.md

Co-authored-by: GZ <[email protected]>

* Update migrationB.md

* Update migrationB.md

Co-authored-by: GZ <[email protected]>

Author: Celia18305

tutorials/en-us/migrationB.md

@@ -0,0 +1,24 @@
+# Migration from Neo Legacy to Neo N3
+
+This tutorial is intended to guide exchange developers in migrating the global assets NEO/GAS/nNEO/cGAS on the Neo Legacy chain to the Neo N3 chain via transfer transactions.
+
+## Migration process flow
+
+1. On Neo Legacy side, the user sends a transfer transaction (Invocation Transaction/Contracttransaction) to the specific address `ANeo2toNeo3MigrationAddressxwPB2Hz`, placing the N3 standard address (in stringhex format) in **attribute** of the transaction using the key **Remark14**. 
+
+   The code demos in multi-languages are provided for your reference: [Demos](https://github.com/neo-ngd/sdkDemo)
+
+   > [!Caution]
+   >
+   > Before sending the transaction, ensure that your transaction meets all the following requirements, otherwise it would not be processed and your assets sent out would be lost!
+   >
+   > - The N3 address in the transaction is valid and only one Remark14 in **attribute**.
+   > - For migration asset amount equal to or more than 10 NEO or 20 GAS it is free. If you are migrating less than that amount, you have to attach **1 GAS as network fee**. 
+   > - One transaction can only include one kind of asset for migration except GAS for network fee payment. 
+
+2. We will scan all the Neo legacy transactions sent to the specific address and sends the corresponding amount of NEO/GAS token to the N3 address at regular intervals (up to one business day) only if the transaction is valid.
+
+## See also
+
+- [Asset Contract Hashes](https://github.com/neo-ngd/sdkDemo/blob/master/contracthash.md)
+- [Guideline on Migration Page](migration-guide.md)

tutorials/en-us/toc.yml

@@ -3,6 +3,6 @@
 - name: Cross-chain Migration
   items:
   - name: Migration Development Guideline
-    href: /tutorials/en-us/migration.md
+    href: /tutorials/en-us/migrationB.md
   - name: Migration Guideline on Migration Page
     href: /tutorials/en-us/migration-guide.md

tutorials/zh-cn/migrationB.md

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+# 从 Neo Legacy 迁移到 Neo N3
+
+本教程将指导开发人员通过转账的方式将 Neo Legacy 上的资产 NEO/GAS/nNEO/cGAS 迁移到 Neo N3。
+
+## 迁移流程
+
+1. 在 Neo Legacy 端, 用户构建一笔转账交易 (Invocation Transaction/Contracttransaction) 将迁移资产发送到指定地址 `ANeo2toNeo3MigrationAddressxwPB2Hz`, 在这笔交易中将 N3 合法地址 (stringhex格式) 放入交易的 attribute中，使用 **Remark14** 作为 Key。
+
+   多语言交易代码可参考示例：[Demos](https://github.com/neo-ngd/sdkDemo)
+
+   > [!Caution]
+   >
+   > 发送交易前，请确保该交易满足以下所有要求，否则该交易不会被处理且迁移的资产无法找回！
+   >
+   > - 交易中的 N3 地址合法且 **attribute **里仅包含一个 Remark14。
+   > - 迁移资产大于等于 10 NEO 或 20 GAS 是免费的。如果迁移资产小于该金额，必须附加 **1 GAS** 作为网络费。 
+   > - 除了作为网络费的 GAS，一笔交易仅包含一种资产。
+   > - NEO 或 nNEO 不支持小数部分迁移，N3 发放 NEO 时会做向下取整。
+
+2. 我们将扫描所有 Neo legacy 上发送到上述特定地址的交易，如果验证交易合法，将每隔一段时间（最长一个工作日）将对应金额的资产发送到指定的N3 地址。
+
+## 相关参考
+
+- [资产合约 Hash](https://github.com/neo-ngd/sdkDemo/blob/master/contracthash.md)
+- [Neo N3 迁移页面指南](migration-guide.md)

tutorials/zh-cn/toc.yml

@@ -3,6 +3,6 @@
 - name: 跨链迁移
   items:
   - name: 迁移开发指南
-    href: /tutorials/zh-cn/migration.md
+    href: /tutorials/zh-cn/migrationB.md
   - name: 迁移页面指南
     href: /tutorials/zh-cn/migration-guide.md