add doctstings

lettings/views.py

@@ -3,12 +3,22 @@ from lettings.models import Letting
 
 
 def index(request):
+    """
+    letting's index page. Retrieve all objects in db then give list to template
+    :param request; None
+    :return: render and display template HTML
+    """
     lettings_list = Letting.objects.all()
     context = {'lettings_list': lettings_list}
     return render(request, 'lettings/index.html', context)
 
 
 def letting(request, letting_id):
+    """
+    display detail of a particular Letting object
+    :param request: None
+    :return: render and display template HTML
+    """
     letting = Letting.objects.get(id=letting_id)
     context = {
         'title': letting.title,