...the easiest way to edit it is to just use Terminal...
Well, that's entirely dependent on what you're familiar with. I suspect that someone who's never used
nano will find that environment a bit more confusing than the small amount of file manipulation required to open, edit and save
/etc/hosts in a GUI text editor.
If you're going to suggest
sudo nano /etc/hoststhen you might want to explain how the reader should go about doing things like, say, moving the insertion point and saving the changes.