It helps me a lot so I can have everything related to this mod on github and dont need to manage it on the discord and the github.

Here is how you do so:

1. In the right top corner you should see "fork" so click it (first image)
2. Then it will create a copy of my repository as your repository
3. [optional] Get the repository to your local computer
4. Make changes and upload it to your (copied) repository
   
5. Then on the main page of your repository (Code) you should see pull request viz. second image
6. Write some description of what you have made and contribute it
7. Then if it will be allright I confirm your request
8. CONGRATULATIONS YOU DID IT 😸

Btw take src/main/resources/assets/oreganized/lang/en_us.json and edit only the part after : or your translation might not work and if you find something like %1$s do NOT edit this (it will most likely be in death messages)

P.S. Don't forget to name it right as minecraft language file should be. Thanks. Link: https://minecraft.gamepedia.com/Language