Yes, you just add them to the fermentor. Of course because we are nerdy enthusiasts, we all do it a little differently.
Easiest, toss them in. You may get floaties in the beer when you bottle. Putting the fermentor in the fridge can help this stuff drop to the bottom.
Next, putting them in a sanitized mesh bag or tea ball. Makes things cleaner.
Third, do the sanitized container, but weighing it so it's in the middle of the fermentor. Possibly using floss or something to tie it iff.