Adding cloud server tutorial

[ibnesayeed]

Good job!

I would suggest a few changes though:

• Add a title slide
• Rename the file to reflect the purpose/topic

[kritikagarg]

Thank you. As suggested, I added the title slides and renamed the file.

[ibnesayeed]

A few more changes:

• It is not a generic could hosting tutorial, so you can make both the title and file name more specific, such as:
  • Title: DigitalOcean Server Setup With Custom Domain Name
  • File name: digitalocean_server_setup_by_kritika.pdf
• One of your section title slides says, Set up a Domain name server, but you are only setting up a domain name, not a domain name server
• Be more consistent in title casing slide titles