update (#1308)

* update

* Update tutorials/en-us/migrationB.md

Co-authored-by: Owen Zhang <[email protected]>

* Update tutorials/zh-cn/migrationB.md

Co-authored-by: Owen Zhang <[email protected]>

Co-authored-by: Owen Zhang <[email protected]>

Author: Celia18305

tutorials/en-us/migrationB.md

@@ -4,18 +4,22 @@ This tutorial is intended to guide exchange developers in migrating the global a
 
 ## 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**. 
+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**.
+   > - 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. 
 
+   > [!Note]
+   >
+   > Migrating the decimal part of nNEO is not supported. The migration amount will be rounded down when distributing nNEO on N3 blockchain. 
+
 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

tutorials/zh-cn/migrationB.md

@@ -4,18 +4,21 @@
 
 ## 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。
+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。
+   > - 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。
+
+   > [!Note]
+   >
+   > nNEO 不支持小数部分迁移，N3 发放 NEO 时会根据 nNEO 的数量做向下取整。
 
 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。