message: docs(Locale): add pt-BR to CN doc
diff: @@ -41,13 +41,11 @@ Current supported languages:
  | Language | Filename |
  | ------------------------ | ------------ |
  -| Chinese | zh-CN |
  -| Traditional Chinese (HK) | zh-HK |
  -| Traditional Chinese (TW) | zh-TW |
  | German | de-DE |
  | German (formal) | de-DE-formal |
  | English | en-US |
  | Spanish (Spain) | es-ES |
  +| French | fr-FR |
  | Japanese | ja-JP |
  | Norwegian | nb-NO |
  | Portuguese (Brazil) | pt-BR |
  @@ -55,7 +53,9 @@ Current supported languages:
  | Russian | ru-RU |
  | Turkish | tr-TR |
  | Thai | th-TH |
  -| French | fr-FR |
  +| Chinese | zh-CN |
  +| Traditional Chinese (HK) | zh-HK |
  +| Traditional Chinese (TW) | zh-TW |
  > View all language configs [Here](https://github.com/youzan/vant/tree/dev/packages/vant/src/locale/lang).
  