Add syntax highlighting in Readme
Add syntax highlighting in Readme

Turns out GitHub's syntax highlighting for bash sessions sucks, though.  They pull from a documented repo, so one to-do is contribute to this in personal time.

gabrielkrell/sendgrid-python,sendgrid/sendgrid-python,gabrielkrell/sendgrid-python,galihmelon/sendgrid-python,sendgrid/sendgrid-python,galihmelon/sendgrid-python,blackpioter/sendgrid-python,gabrielkrell/sendgrid-python,galihmelon/sendgrid-python,blackpioter/sendgrid-python,sendgrid/sendgrid-python,blackpioter/sendgrid-python