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neehow · Apr 8, 2019 · ca881af · ca881af
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diff --git a/README.md b/README.md
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 注意：身份证号符合规则，只是该身份证号符合国家标准中的规则，并不意味着该身份证号真实存在。
 
 ## Installation
+```
 npm install is-valid-id-card --save
+```
 
 ## Examples
 ```