1. Sign up for GitHub.

2. Click on the Fork button in the top-right corner of the page.

3. Open the forked repository https://github.com/<YourUserName>/ImprovedTube/_locales (replace <YourUserName> with your username). Here you can find folders named by language codes.

4. Click the Create new file button.

5. Paste <YourLanguageCode>/messages.json into the text field (replace <YourLanguageCode> with your language code).

6. Copy text from the file and paste it into the editor from step 5, then translate the text.

7. Scroll down the page and click the Commit new file button.

(- You can also edit the "readme.md"-file to add your name and date of translation to the credits list)

8. Go to the home page of your repository https://github.com/<YourUserName>/ImprovedTube-for-YouTube and click the New pull request button.

9. Click the Create pull request button.