[Feature Request] Wordpress Multisite support

[dfear]

I would like Wordpress Multisite support.

Could be as simple as changing "servers" tab > "domain" form field to allow for spaces between domain names, or add checkbox for "multisite support" and addable "domain" form fields to allow for correct input of domain names (w/ or w/o wildcards) used with this multisite installation.

related issue: https://github.com/digitalocean/nginxconfig.io/issues/120