I'm sure this is simple but I'd like to make sure I'm following best practice here. I have an old SharePoint 2013 environment (let's just call it SP-A) that has a subsite for IT in it. I'd like to move that entire subsite to my new SharePoint deployment (SP-B). How, or what is the best way to accomplish this? It's not terribly large and has maybe 20-30 word/excel documents, a calendar, and some small stuff. What's the best way to go about moving the subsite from SP-A to the new SP-B?