how to comment lines in github page code example

Example: git change multiple comments

Update the author details of historical commits
Firstly, we'll need to update the commit author in our local Git config:

$ git config --global user.name "Robert Lyall"
$ git config --global user.email "[email protected]"
Then, reset the author of all commits after a specific commit:

$ git rebase -i 956951bf -x "git commit --amend --reset-author -CHEAD"
You'll then be presented with your editor where you can confirm all the commits you want to change.

pick bef03ed Revert "Add the correct link to Brie"
exec git commit --ammend --reset-author -CHEAD
pick 74dd8b3 New folder
exec git commit --ammend --reset-author -CHEAD
pick 56aedbe remove old folder
exec git commit --ammend --reset-author -CHEAD

# Rebase 956951b..56aedbe onto 956951b (6 commands)
#
# Commands:
# p, pick <commit> = use commit
# r, reword <commit> = use commit, but edit the commit message
# e, edit <commit> = use commit, but stop for amending
# s, squash <commit> = use commit, but meld into previous commit
# f, fixup <commit> = like "squash", but discard this commit's log message
# x, exec <command> = run command (the rest of the line) using shell
# b, break = stop here (continue rebase later with 'git rebase --continue')
# d, drop <commit> = remove commit
# l, label <label> = label current HEAD with a name
# t, reset <label> = reset HEAD to a label
Check through the commits in the list, and hit ctrl+x, followed by enter to apply the changes.