Blizzard has added pages covering the Followers to their game coverage on Battle.net. The pages are quite pretty, with skills listed as well as general information about the Enchantress, Templar, and Scoundrel.
Bear in mind that the skills and items are still works in progress. Each follower currently has only 8 skills, with the highest level enabled at 25. Whether this will change as the devs work on ways to make Followers useful even into Inferno and the End Game remains to be seen.