The roadmap is built using xMind. Project file can be found at /src directory and blockchain-developer-roadmap.xmind file. To modify it, download and open xMind from here, click Open File and choose xmind file with project. It will open the roadmap for you. Update it, upload and update the exported images from xMind in readme and create a PR.
- Open a pull request with improvements
- Discuss ideas in issues
- Spread the word