[release-12.0.0] Dashboard API: Update dashboard version docs (#104790)

Co-authored-by: Artur Wierzbicki <artur.wierzbicki@grafana.com>

docs/sources/developers/http_api/dashboard_versions.md

@@ -47,7 +47,9 @@ HTTP/1.1 200 OK
 Content-Type: application/json; charset=UTF-8
 Content-Length: 428
 
-[
+{
+  "continueToken": "",
+  "versions": [
     {
       "id": 2,
       "dashboardId": 1,
@@ -70,7 +72,8 @@ Content-Length: 428
       "createdBy": "admin",
       "message": "Initial save"
     }
-]
+  ]
+}
 ```
 
 Status Codes:
@@ -89,7 +92,7 @@ Get the dashboard version with the given version, for the dashboard with the giv
 **Example request for getting a dashboard version**:
 
 ```http
-GET /api/dashboards/id/1/versions/1 HTTP/1.1
+GET /api/dashboards/uid/QA7wKklGz/versions/1 HTTP/1.1
 Accept: application/json
 Content-Type: application/json
 Authorization: Bearer eyJrIjoiT0tTcG1pUlY2RnVKZTFVaDFsNFZXdE9ZWmNrMkZYbk