Addition of new commands

[KathaMehta]

I came across a few git commands which you could add -

• git reflog
• git branch -vv
• git pull -r
• git stash
• git stash list
• git stash apply
• images of git reset and git rebase

[HarshKapadia2]

Thank you for raising the issue, @KathaMehta! Also, congratulations on raising your first issue ever!