Fixed Tags endpoint to reflect proper API route

@jasontruluck @cpreisinger @sam199006 @tomprats 

I know you guys are busy but if one of you guys could look this over and thumbs this up that would be great. I can get Chris to look at it tomorrow, and maybe I can keep testing the gem more, so we can have a more full idea of what short comings it may have. I hope ya'll are enjoying the conference.