Documentation problems

[ibrido90]

Hi i don't want to be too rude about this but actually there are some problems in your docs.
First things first. I really like your job about this tool but this is intended to help you and other save time (no anger :) ). So... :

1. Please explain the difference (if any) between fromConfig and fromNodeConfig functions

2. baseDir does not exist, instead it's called basePath

3. now the example (in wich i used fromConfig):

   1. first of all fromConfig expects an object like this:

      ...
      
      var opts = {
          config: /*retrieve config file*/,
          basePath: process.cwd() /*or whatever it is*/
      }
      
      var di = amend.fromConfig(opts);
      
      ...
      

   2. You created a file called playGame.js but in config.json was refereneced as play-game.js

   3. Even for 'custom' modules, in node is not necessary to specify the extension of your file so the config.json can be rewritten as:

         {
             "modules": {
                 "rollDice": "./roll-dice",
                 "playGame": "./playGame",
                 "_": {
                     "require": "lodash",
                     "type": "value"
                 }
             }
         }
         ```
   
   Anyway very good work about this module.