add docstring for establishment type

apps/establishment/views/back.py

@@ -610,7 +610,19 @@ class RemoveAwardView(generics.DestroyAPIView):
 
 
 class EstablishmentTypeListCreateView(generics.ListCreateAPIView):
-    """Establishment type list/create view."""
+    """
+    Establishment type list/create view.
+
+    **GET**
+    ```
+    Implement getting list of Establishment type.
+    ```
+
+    **POST**
+    ```
+    Implement creating Establishment type
+    ```
+    """
     serializer_class = serializers.EstablishmentTypeBaseSerializer
     queryset = models.EstablishmentType.objects.select_related('default_image')
     pagination_class = None
@@ -618,7 +630,30 @@ class EstablishmentTypeListCreateView(generics.ListCreateAPIView):
 
 
 class EstablishmentTypeRUDView(generics.RetrieveUpdateDestroyAPIView):
-    """Establishment type retrieve/update/destroy view."""
+    """
+    Establishment type retrieve/update/destroy view.
+
+    **GET**
+    ```
+    Implement getting Establishment type object by id.
+    ```
+
+    **PUT**
+    ```
+    Implement update Establishment type.
+    ```
+
+    **PATCH**
+    ```
+    Implement partial update Establishment type.
+    ```
+
+    **DELETE**
+    ```
+    Implement deleting Establishment type.
+    ```
+
+    """
     serializer_class = serializers.EstablishmentTypeBaseSerializer
     queryset = models.EstablishmentType.objects.select_related('default_image')
     permission_classes = get_permission_classes()