Update readme.md

Author: goldbergyoni

readme.md

@@ -40,6 +40,7 @@ Start by understanding the ubiquitous testing practices that are the foundation
 - 🇪🇸[Spanish](readme-es.md) - Courtesy of [Miguel G. Sanguino](https://github.com/sanguino)
 - 🇧🇷[Portuguese-BR](readme-pt-br.md) - Courtesy of [Iago Angelim Costa Cavalcante](https://github.com/iagocavalcante) , [Douglas Mariano Valero](https://github.com/DouglasMV) and [koooge](https://github.com/koooge)
 - 🇫🇷[French](readme-fr.md) - Courtesy of [Mathilde El Mouktafi](https://github.com/mel-mouk)
+- 🇯🇵[Japanese (draft)](https://github.com/yuichkun/javascript-testing-best-practices/blob/master/readme-jp.md) - Courtesy of [Yuichi Yogo](https://github.com/yuichkun) and [ryo](https://github.com/kawamataryo)
 - Want to translate to your own language? please open an issue 💜
 
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