By default, it says GRAV at the top left. I can’t seem to find where to change it. Would it be in the site.yaml file? Somewhere else? Or am I looking too hard and it’s in an obvious place? 
Yah it’s right in front of you in the site.yaml :). Change it in your user/config/site.yaml file. First entry: title:
I actually did change the title and re-uploaded it to my server running Apache. Would I have to restart Apache? It’s not changing for some reason.
No you should not have to restart apache. Grav is smart enough that when it sees a newer configuration file, it recompiles the configuration into a speedier cached config PHP file.
Is the date changing when you change that file? You can try to clear the cache manually via the CLI:
Yeah, it was the cache I guess. I cleared it and it changed the title. Thanks a lot!
No problem!