chore(notes:git): update rebase root command

docs/notes/git.md

@@ -288,6 +288,7 @@ git revert HEAD~x # where x is x+1th commit one wanna rollback to
 git rebase --interactive HEAD~n # n is the number of commit you want to squash
 # calling above command will open a terminal
 # replace `pick` with `s` to squash a commit i.e., to remove.
+git rebase -i --root main # alternative if rebase from start
 git push --force
 ```