git checkout -b v0.2

git add README.md ROADMAP.md
git commit -m "v0.2 architecture update"

git push -u origin v0.2

GitHub will show link to:
https://github.com/<your-repo>/pull/new/v0.2

# Edit files
git add <files>
git commit -m "update: your message"
git push

• Go to GitHub
• Open Pull Request tab
• Create PR: v0.2 → main

On GitHub:

• Click Merge Pull Request
• Done — main now updated

git branch -d v0.2             # delete local
git push origin --delete v0.2  # delete remote

git branch

• You only need to create PR once (first time you push branch like v0.2).

• After PR is open:

git add <files>
git commit -m "your message"
git push

• PR will auto-update with new commits — no need to create PR again.

• When ready → click Merge pull request on GitHub.

• After merge → main branch is updated.

• You can then delete branch if you want.