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GIT_GUIDE.md

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+# Git Guide
+
+## 20 câu lệnh Git quan trọng
+
+git clone <repo>
+git status
+git pull origin main
+git checkout main
+git checkout -b feature/new-feature
+git branch
+git add .
+git add file.cs
+git commit -m "message"
+git push origin branch
+git log
+git diff
+git stash
+git stash pop
+git merge branch
+git rebase main
+git reset --soft HEAD~1
+git reset --hard HEAD
+git fetch origin
+git remote -v