Make 'init-letsencrypt.sh' executable

[ztaye3]

OMG! "I have deployed my first app into production." Brother, I would like to thank you for your kindness and brilliant fully comprehensive tutorials. I am sure that it helped many others like me.

When I go back to the comment, the 'init-letsencrypt.sh' certification file should be executable before use. We can make it executable in linux using this command: "sudo chmod +x init-letsencrypt.sh"

Thanks again!