feat: contributors graph (type-challenges#9503)

Author: Lionad-Morotar

README.ja.md

@@ -74,9 +74,9 @@ TypeScriptには [ts-toolbelt](https://github.com/millsp/ts-toolbelt), [utility-
 
 日本語のコミュニティの翻訳と維持について、[@kawamataryo](https://github.com/kawamataryo)に感謝します。
 
-### Contributors
+### [Contributors](https://github.com/type-challenges/type-challenges/graphs/contributors)
 
-[英語版](./README.md#contributors)に記載しています。
+![Contributors](https://contrib.rocks/image?repo=type-challenges/type-challenges)
 
 ## ライセンス
 

README.ko.md

@@ -90,6 +90,8 @@ This project was born from solving real-world types problem with [@hardfist](htt
 
 ### [Contributors](https://github.com/type-challenges/type-challenges/graphs/contributors)
 
+![Contributors](https://contrib.rocks/image?repo=type-challenges/type-challenges)
+
 ## License
 
 MIT

README.md

@@ -103,6 +103,8 @@ This project was born from solving real-world types problem with [@hardfist](htt
 
 ### [Contributors](https://github.com/type-challenges/type-challenges/graphs/contributors)
 
+![Contributors](https://contrib.rocks/image?repo=type-challenges/type-challenges)
+
 ## License
 
 MIT

README.zh-CN.md

@@ -75,9 +75,9 @@
 
 这个项目诞生于 [@hardfist](https://github.com/hardfist) 和 [@MeCKodo](https://github.com/MeCKodo) 两位朋友做的类型体操。同时也非常感谢 [@sinoon](https://github.com/sinoon) 在项目初期提供了宝贵的反馈意见与参与的贡献。
 
-### 贡献者
+### [贡献者](https://github.com/type-challenges/type-challenges/graphs/contributors)
 
-请见[英文版](./README.md#contributors)。
+![Contributors](https://contrib.rocks/image?repo=type-challenges/type-challenges)
 
 ## License
 

TODOs.md

@@ -12,4 +12,3 @@ A list of TODOs for this project, PR welcome!
 
 - [ ] "Recent Challenges" section in the README
 
-- [ ] Contributors graph