Merge pull request #8070 from Evezerest/release2.6

Add i18n readme link

README.md

-English | [简体中文](README_ch.md)
+English | [简体中文](README_ch.md) | [हिन्दी](./doc/doc_i18n/README_हिन्द.md) | [日本語](./doc/doc_i18n/README_日本語.md) | [한국인](./doc/doc_i18n/README_한국어.md) | [Pу́сский язы́к](./doc/doc_i18n/README_Ру́сский язы́к.md)
 
 <p align="center">
  <img src="./doc/PaddleOCR_log.png" align="middle" width = "600"/>

README_ch.md

-[English](README.md) | 简体中文
+[English](README.md) | 简体中文 | [हिन्दी](./doc/doc_i18n/README_हिन्द.md) | [日本語](./doc/doc_i18n/README_日本語.md) | [한국인](./doc/doc_i18n/README_한국어.md) | [Pу́сский язы́к](./doc/doc_i18n/README_Ру́сский язы́к.md)
 
 <p align="center">
  <img src="./doc/PaddleOCR_log.png" align="middle" width = "600"/>

doc/doc_i18n/README_Ру́сский язы́к.md

-English | [简体中文](README_ch.md)
+[English](../../README.md) | [简体中文](../../README_ch.md) | [हिन्दी](./README_हिन्द.md) | [日本語](./README_日本語.md) | [한국인](./README_한국어.md) | Pу́сский язы́к
 
 <p align="center">
  <img src="../PaddleOCR_log.png" align="middle" width = "600"/>

doc/doc_i18n/README_हिन्द.md

-English | [简体中文](README_ch.md)
+[English](../../README.md) | [简体中文](../../README_ch.md) | हिन्दी | [日本語](./README_日本語.md) | [한국인](./README_한국어.md) | [Pу́сский язы́к](./README_Ру́сский язы́к.md)
 
 <p align="center">
  <img src="../PaddleOCR_log.png" align="middle" width = "600"/>

doc/doc_i18n/README_日本語.md

-English | [简体中文](README_ch.md)
+[English](../../README.md) | [简体中文](../../README_ch.md) | [हिन्दी](./README_हिन्द.md) | 日本語 | [한국인](./README_한국어.md) | [Pу́сский язы́к](./README_Ру́сский язы́к.md)
 
 <p align="center">
 <img src="../PaddleOCR_log.png" align="middle" width = "600"/>

doc/doc_i18n/README_한국어.md

-English | [简体中文](README_ch.md)
+[English](../../README.md) | [简体中文](../../README_ch.md) | [हिन्दी](./README_हिन्द.md) | [日本語](./README_日本語.md) | 한국인 | [Pу́сский язы́к](./README_Ру́сский язы́к.md)
 
 <p align="center">
  <img src="../PaddleOCR_log.png" align="middle" width = "600"/>