add docstring for Review

apps/review/views/back.py

@@ -50,6 +50,26 @@ class ReviewListView(PermissionMixinView, ReviewMixinView, generics.ListCreateAP
 class ReviewRUDView(PermissionMixinView, ReviewMixinView, generics.RetrieveUpdateDestroyAPIView):
     """Review RUD view.
 
+     **GET**
+    ```
+    Implement getting Review object.
+    ```
+
+    **PUT**
+    ```
+    Implement updating Review.
+    ```
+
+    **PATCH**
+    ```
+    Implement partial updating Review.
+    ```
+
+    **DELETE**
+    ```
+    Implement deleting Review.
+    ```
+
     status values:
 
     TO_INVESTIGATE = 0