Add missing integration instructions for drf-yasg (jazzband#505)

* Add missing integration instructions for drf-yasg

* Add line break to the example code

Co-authored-by: 2ykwang <csdp000@naver.com>

docs/drf_yasg_integration.rst

@@ -14,7 +14,11 @@ following code to decorate your JWT ``View`` definitions.
     from drf_yasg.utils import swagger_auto_schema
     from rest_framework import serializers, status
     from rest_framework_simplejwt.views import (
-        TokenObtainPairView, TokenRefreshView, TokenVerifyView)
+        TokenBlacklistView,
+        TokenObtainPairView,
+        TokenRefreshView,
+        TokenVerifyView,
+    )
 
 
     class TokenObtainPairResponseSerializer(serializers.Serializer):
@@ -31,7 +35,9 @@ following code to decorate your JWT ``View`` definitions.
     class DecoratedTokenObtainPairView(TokenObtainPairView):
         @swagger_auto_schema(
             responses={
-                status.HTTP_200_OK: TokenObtainPairResponseSerializer})
+                status.HTTP_200_OK: TokenObtainPairResponseSerializer,
+            }
+        )
         def post(self, request, *args, **kwargs):
             return super().post(request, *args, **kwargs)
 
@@ -49,7 +55,9 @@ following code to decorate your JWT ``View`` definitions.
     class DecoratedTokenRefreshView(TokenRefreshView):
         @swagger_auto_schema(
             responses={
-                status.HTTP_200_OK: TokenRefreshResponseSerializer})
+                status.HTTP_200_OK: TokenRefreshResponseSerializer,
+            }
+        )
         def post(self, request, *args, **kwargs):
             return super().post(request, *args, **kwargs)
 
@@ -65,7 +73,27 @@ following code to decorate your JWT ``View`` definitions.
     class DecoratedTokenVerifyView(TokenVerifyView):
         @swagger_auto_schema(
             responses={
-                status.HTTP_200_OK: TokenVerifyResponseSerializer})
+                status.HTTP_200_OK: TokenVerifyResponseSerializer,
+            }
+        )
+        def post(self, request, *args, **kwargs):
+            return super().post(request, *args, **kwargs)
+
+
+    class TokenBlacklistResponseSerializer(serializers.Serializer):
+        def create(self, validated_data):
+            raise NotImplementedError()
+
+        def update(self, instance, validated_data):
+            raise NotImplementedError()
+
+
+    class DecoratedTokenBlacklistView(TokenBlacklistView):
+        @swagger_auto_schema(
+            responses={
+                status.HTTP_200_OK: TokenBlacklistResponseSerializer,
+            }
+        )   
         def post(self, request, *args, **kwargs):
             return super().post(request, *args, **kwargs)