#22 improve doc

src/UserConfig.js

@@ -1,11 +1,14 @@
 // Copyright © 2019-2020 Brandon Li. All rights reserved.
 
 /**
- * Utility class for referencing, validating, and parsing user-specific configuration options. This class isn't directly
- * used by any of the Grunt commands in grunt-config/Gruntfile.
+ * Utility for referencing, validating, and parsing user-specific configuration options.
  *
- * User-specific configuration options are generalized values that the user of grunt-config configures. For instance,
- * each package.json of every user will be slightly different. Each key of package.json is a user-specific option.
+ * User-specific configuration options are generalized values that depend on the user and environment. For instance,
+ * each package.json of every user will be slightly different. Each key of package.json is a user-specific option and
+ * determines Generator values.
+ *
+ * Contains methods for validating user configuration value(s). These are placed into methods so that they are only
+ * validated on the command that needs the value(s).
  *
  * @author Brandon Li <[email protected]>
  */
@@ -14,9 +17,15 @@ module.exports = ( () => {
   'use strict';
 
   // modules
+  const grunt = require( 'grunt' );
   const Util = require( './Util' );
 
-  class Config {
+  const Config = {
+
+    PACKAGE_JSON: grunt.file.isFile( 'package.json' ) ? grunt.file.readJSON( 'package.json' ) : undefined,
+    BUILD_RC: grunt.file.isFile( 'package.json' ) ? grunt.file.readJSON( 'package.json' ) : undefined,
+    GITHUB_ACCESS_TOKEN: process.env.GITHUB_ACCESS_TOKEN
+
 
   }