diff --git a/README.md b/README.md
index f67e381..67cef87 100644
--- a/README.md
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@@ -160,6 +160,8 @@ For Ubuntu, official recommend mirror lists are here:
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 **--nomemcheck**: Disable memory check by force so that you can install any OS on any size of the memory in target machine, whether installation will succeed is not guaranteed.
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 **--network "dhcp/auto" or "static/manual"**: Default to use DHCP to finish network configuration. If your cloud provider is a small or middle merchant, the network of your machine may be static so you need to add it. it is equal with add --ip-addr "" --ip-mask "" --ip-gate "", if you add this, don't distribute the following three items again! It must be added in the last of the command.
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