adding comments for feedbacks models and services

app/models/bug.rb

+##Represents a software issue
 class Bug
   include ActiveModel::Model
   attr_accessor :title, :description

app/models/feedback.rb

+##Feedback is an user review of the system
 class Feedback < ActiveRecord::Base
   belongs_to :user
   has_and_belongs_to_many :feedback_ratings

app/services/feedback_service.rb

+##
+# The Feedback service abstract two actions: report_bug, that delegates behavior for a BugReporter service; and send_feedback, that stores a user review of the system.
 class FeedbackService
 
   def initialize(bugreporter_service)
@@ -5,16 +7,17 @@ class FeedbackService
   end
 
   ##
-  # delegates the reporting behavior for a bug reporter service
+  # delegates the behavior for a bug reporter service
   def report_bug(bug)
     @bugreporter_service.report bug
   end
 
-  ##
+  ##Feedback is an user review of the system
   # store the feedbacks in database and send notification
   def send_feedback(feedback)
     # save and send an email
     feedback.save!
+    # send notification
   end
 
 end
\ No newline at end of file

app/services/gitlab_bugreporter_service.rb

+##
+# This service represents the Gitlab Bug Reporter
+#  The client can report a bug, that will be created an issue for PortalMEC project.
 class GitlabBugreporterService
   PORTALMEC_PROJECT_ID = 633