[Bug] Fixed ! Some Problem about deploy.sh

[DieYiSu]

Hi @abhijithvijayan ,

I have found some problem when I run your deploy.sh on my Macbook Pro, and I have fixed it :)

• The sed shell command which trying to replace jpgg with jpg
• The sed shell symbol in the command which trying to replace localhost:2368 with username and gh_repo.
• The Fixing Images step should be to do on the setup step.
• The master branch had been replaced with main branch by Github team at 2020/10, so you don't need to create master and gh-pages branch.

I will send the PR to you.

[abhijithvijayan]

Cool