- Go to the GitHub mod page: https://github.com/vcmi-mods/haven-town
- Fork the repository by clicking on the "Fork" button
- Browse to the file you want to change
- Click on the pencil button to edit the file
- Edit the file
- Click on the "Commit changes..." button
- Click on the "Pull request" tab
- Click on the "Create Pull Request" button
- Write a description and create the PR (Pull Request)