Comment up serializers.py

- really simple since everything is basically ModelSerializers

whats-open/api/serializers.py

 """
 api/serializers.py
 
-Rest Framework Serializers
+Serializers allow complex data to be converted to native Python datatypes that
+can then be easily rendered into JSON, XML or other content types.
+
+http://www.django-rest-framework.org/api-guide/serializers
 """
 # Future Imports
 from __future__ import (absolute_import, division, print_function,
@@ -13,46 +16,66 @@ from .models import Category, Facility, Schedule, OpenTime, Location
 # Other Imports
 from rest_framework import serializers
 
-class OpenTimeSerializer(serializers.ModelSerializer):
+class CategorySerializer(serializers.ModelSerializer):
     """
+    Serializer for the Category model.
     """
     class Meta:
-        model = OpenTime
+        # Choose the model to be serialized
+        model = Category
+        # Serialize all of the fields
         fields = '__all__'
 
-class CategorySerializer(serializers.ModelSerializer):
+class LocationSerializer(serializers.ModelSerializer):
     """
+    Serializer for the Location model.
     """
     class Meta:
-        model = Category
+        # Choose the model to be serialized
+        model = Location
+        # Serialize all of the fields
         fields = '__all__'
 
-class LocationSerializer(serializers.ModelSerializer):
+class OpenTimeSerializer(serializers.ModelSerializer):
     """
+    Serializer for the OpenTime model.
     """
     class Meta:
-        model = Location
+        # Choose the model to be serialized
+        model = OpenTime
+        # Serialize all of the fields
         fields = '__all__'
 
 class ScheduleSerializer(serializers.ModelSerializer):
     """
+    Serializer for the Schedule model.
     """
+    # Append a serialized OpenTime object
     open_times = OpenTimeSerializer(many=True, read_only=True)
 
     class Meta:
+        # Choose the model to be serialized
         model = Schedule
+        # List the fields that we are serializing
         fields = ('id', 'open_times', 'modified', 'name', 'valid_start',
                   'valid_end')
 
 class FacilitySerializer(serializers.HyperlinkedModelSerializer):
     """
+    Serializer for the Facility model.
     """
+    # Append a serialized Category object
     facility_category = CategorySerializer(many=False, read_only=True)
+    # Append a serialized Location object
     facility_location = LocationSerializer(many=False, read_only=True)
+    # Append a serialized Schedule object to represent main_schedule
     main_schedule = ScheduleSerializer(many=False, read_only=True)
+    # Append a serialized Schedule object to represent special_schedules
     special_schedules = ScheduleSerializer(many=True, read_only=True)
 
     class Meta:
+        # Choose the model to be serialized
         model = Facility
+        # List the fields that we are serializing
         fields = ('id', 'facility_category', 'facility_location',
                   'main_schedule', 'special_schedules', 'modified', 'name')