chore: add example and link to the schema spec

Author: stepskop

apify-api/openapi/components/schemas/datasets/Dataset.yaml

@@ -50,6 +50,22 @@ properties:
   schema:
     type: object
     nullable: true
+    description: Defines the schema of items in your dataset, the full specification can be found in [Apify docs](/platform/actors/development/actor-definition/dataset-schema)
+    example:
+      actorSpecification: 1
+      title: "My dataset"
+      views:
+        overview:
+          title: "Overview"
+          transformation:
+            fields:
+              - "linkUrl"
+          display:
+            component: "table"
+            properties:
+              linkUrl:
+                label: "Link URL"
+                format: "link"
   consoleUrl:
     type: string
     example: 'https://console.apify.com/storage/datasets/27TmTznX9YPeAYhkC'