Adding Virtual Private Cloud (VPC) added (deprecated use vpc) in private networking

[GurjinderSingh]

Adding Virtual Private Cloud (VPC) added (deprecated use vpc) in private networking

Description

Hello,

This is my first professional go edit and submit, please test and approve. just added an extra string tag vpc.

DigitalOcean Docs links

https://www.digitalocean.com/docs/networking/vpc/

https://developers.digitalocean.com/documentation/v2/#droplets

https://developers.digitalocean.com/documentation/v2/#vpcs

Thank you