docs: fix dead localization doc link in the READMEs (#39211)

Signed-off-by: silverwind <me@silverwind.io>
Co-authored-by: silverwind <me@silverwind.io>

README.md

@@ -62,9 +62,9 @@ Expected workflow is: Fork -> Patch -> Push -> Pull Request
 
 Translations are done through [Crowdin](https://translate.gitea.com). If you want to translate to a new language, ask one of the managers in the Crowdin project to add a new language there.
 
-You can also just create an issue for adding a language or ask on Discord on the #translation channel. If you need context or find some translation issues, you can leave a comment on the string or ask on Discord. For general translation questions there is a section in the docs. Currently a bit empty, but we hope to fill it as questions pop up.
+You can also just create an issue for adding a language or ask on Discord on the #translation channel. If you need context or find some translation issues, you can leave a comment on the string or ask on Discord.
 
-Get more information from [documentation](https://docs.gitea.com/contributing/localization).
+Get more information from [the translation section of our contributing guide](CONTRIBUTING.md#translation).
 
 ## Official and Third-Party Projects
 

README.zh-cn.md

@@ -72,7 +72,7 @@
 
 您也可以创建一个 issue 来添加语言，或者在 discord 的 #translation 频道上询问。如果您需要上下文或发现一些翻译问题，可以在字符串上留言或在 Discord 上询问。对于一般的翻译问题，文档中有一个部分。目前有点空，但我们希望随着问题的出现而填充它。
 
-更多信息请参阅 [文件](https://docs.gitea.com/contributing/localization)。
+更多信息请参阅 [文件](https://docs.gitea.com/zh-cn/contributing/localization)。
 
 ## 官方和第三方项目
 

README.zh-tw.md

@@ -72,7 +72,7 @@
 
 您也可以創建一個 issue 來添加語言，或者在 discord 的 #translation 頻道上詢問。如果您需要上下文或發現一些翻譯問題，可以在字符串上留言或在 Discord 上詢問。對於一般的翻譯問題，文檔中有一個部分。目前有點空，但我們希望隨著問題的出現而填充它。
 
-更多信息請參閱 [文件](https://docs.gitea.com/contributing/localization)。
+更多信息請參閱 [文件](https://docs.gitea.com/zh-tw/contributing/localization)。
 
 ## 官方和第三方項目