2 commits head code example
Example 1: git revert all commits to pervious commit
git revert --no-commit <commithash>..HEAD #revert changes in range of commits from head to back to that commit hash
Example 2: git revert last 2 commits
$ git revert --no-commit D
$ git revert --no-commit C
$ git revert --no-commit B
$ git commit -m "the commit message"