corrected indentation issues

lib/abstract-class.js

@@ -710,22 +710,22 @@ AbstractClass.hasMany = function hasMany(anotherClass, params) {
  * @param {Class} anotherClass - class to belong
  * @param {Object} params - configuration {as: 'propertyName', foreignKey: 'keyName'}
  *
- * {Usage examples}
- * Suppose model Post have a {belongsTo} relationship with User (the author of the post). You could declare it this way:
- * Post.belongsTo(User, {as: 'author', foreignKey: 'userId'});
+ *  {Usage examples}
+ *  Suppose model Post have a {belongsTo} relationship with User (the author of the post). You could declare it this way:
+ *  Post.belongsTo(User, {as: 'author', foreignKey: 'userId'});
  *
- * When a post is loaded, you can load the related author with:
- * post.author(function(err, user) {
- *   // the user variable is your user object
- * });
+ *  When a post is loaded, you can load the related author with:
+ *  post.author(function(err, user) {
+ *    // the user variable is your user object
+ *  });
  *
- * The related object is cached, so if later you try to get again the author, no additional request will be made.
- * But there is an optional boolean parameter in first position that set whether or not you want to reload the cache:
- * post.author(true, function(err, user) {
- *   // The user is reloaded, even if it was already cached.
- * });
+ *  The related object is cached, so if later you try to get again the author, no additional request will be made.
+ *  But there is an optional boolean parameter in first position that set whether or not you want to reload the cache:
+ *  post.author(true, function(err, user) {
+ *    // The user is reloaded, even if it was already cached.
+ *  });
  *
- * This optional parameter default value is false, so the related object will be loaded from cache if available.
+ *  This optional parameter default value is false, so the related object will be loaded from cache if available.
  */
 AbstractClass.belongsTo = function (anotherClass, params) {
     var methodName = params.as;