link added to article resource

app/Http/Resources/ArticleResource.php

@@ -24,6 +24,7 @@ class ArticleResource extends JsonResource
             "body" => $this->body,
             "source" => new SourceResource($this->source),
             "topics" => TopicResource::collection($this->topics),
+            "link" => url(route('article.show',$this->id)),
             "published_date" => $this->published_date
         ];
     }