Task 706 :: Docs-a-thon

"Original File: https://sendgrid.com/docs/User_Guide/smtp_ports.html
should move to this directory

 Merge in any extra information we're missing, but that is found on
this KB article -
https://sendgrid.zendesk.com/hc/en-us/articles/200328026"
Task 706

docsathon
Merge branch 'develop' of https://github.com/anishaingram/docs-1 into anishaingram-develop

Conflicts:
	source/User_Guide/smtp_ports.html
Merge branch 'anishaingram-develop' into develop