Add:Third-Party List about rustlings-jp on README

[sotanengel]

Thank you for creating great exercises!!
Thanks to these exercises, I not only know more about Rust, but I like Rust even more :)

I have created a third-party repository with Japanese translations of this exercise
so that more people in my country(Japan) will know about it and be able to use Rust.
https://github.com/sotanengel/rustlings-jp/tree/main

Then, I added link link to my translated repository at README of Rustlings.
Could you check it?

#2117

[mo8it]

Thank you very much for the translation! I would love to add it to the README. But first, you need to fix the info.toml file to include the translated hints.

This directory isn't needed: https://github.com/sotanengel/rustlings-jp/tree/main/create_info_data

You should use the original info.toml file instead. welcome_message, final_message and all hints need to be translated.

[sotanengel]

Thank you for checking my repository!
I 'm going to delete unneeded folder create_info_data and add translated hints!
When finished, I will mention you at here 🙇

[sotanengel]

@mo8it

I finished fix points!
Cloud you check it??

・Delete un-need folder

・Add all hints
https://github.com/sotanengel/rustlings-jp/blob/20240829/info.toml

[sotanengel]

I re-create new PR, so please check below🙇
#2121

[mo8it]

I merged the PR. But please make sure that you merge the branch 20240829 with the changes into the main branch.

Thank you for the translation :D