Changing Single WP Site to Multi User.

I am working on a WP site that is a single install. Their are several plugins that I would like to use, such as Member Directory, that require multi site.

Anything I need to worry about or does this link cover everything? I already have the site setup and don't want to mess anything up.

link

https://premium.wpmudev.org/manuals/wpmu-manual-2/creating-a-network-to-enable-wordpress-multisite/