talking about 'merge/rebase objective branch'

[fangtaoysu]

In tutorials 3 and 4, you learned about the use of merge and rebase. The 'merge' command in Tutorial 3 was executed on the main branch, while the Rebase Command in tutorial 4 was executed on the Bugfix branch. In the real world, developers typically do git pull = git fetch + git merge` on their own branch, but this tutorial makes one think that this is another difference between the two commands, at least for me.
ps: good tutorials in other parts!!