If your cider is finished fermenting, you can bottle as would be done for beer as far as I know (unless you've purposefully killed the yeast in order to sweeten it). You should dissolve however much priming sugar you want to use in water, boil it for a couple minutes then cool it, and finally add it to a bottling bucket if you have one. Then, you rack your cider on top of the sugar solution. This encourages mixing. Once you've finished racking, I like to mix again very gently with a sanitized spoon. Then you can fill bottles out of the bottling bucket's spigot. As soon as the sugar is mixed in with the cider, you are good to bottle. That was quick, but if you have more questions, we'll all be happy to try and answer them I'm sure. Best of luck!