anchor.diff:  
   TicTacToe is an API, made with node.js, which allows users to play this game with other users.
   
  -## Users Collection [/users]
  +## Users [/users]
   
   ### List All Users [GET]
   
  
positive.code:     
              Wrong username or password
              
  ## Games for User [/games/{user_name}]
  
  ### List All Users Engaged [GET]
  
  For a particular user, you may get all other users that share an unfinished game with.
  
  + Response 200 (application/json)
  
  
negative.code: 
  ### Get Game Grid [GET]
  
  You may get a game's grid in form of an array of 9 strings. Each string has a value of "x", "o" or null depending on whether an user has marked a tile or not.
  
  + Response 200 (application/json)
  
  