docs: Adding resource group grounding label (#505)

packages/document-grounding/README.md

@@ -42,6 +42,11 @@ $ npm install @sap-ai-sdk/document-grounding
 The examples below demonstrate the usage of the most commonly used APIs in SAP AI Core document grounding service.
 In addition to the examples below, you can find more **sample code** [here](https://github.com/SAP/ai-sdk-js/blob/main/sample-code/src/document-grounding.ts).
 
+> Ensure that if you define your own resource group, it has the correct label to use the document grounding service.
+> When creating the resource group on SAP AI Launchpad, add the key-value pair label: `document-grounding: true`.
+> Alternatively, you can create the resource group via the orchestration API.
+> For more details, refer to the [Creating a Resource Group for Grounding](https://help.sap.com/docs/sap-ai-core/sap-ai-core-service-guide/create-resource-group-for-ai-data-management?locale=en-US) guide.
+
 ### Create a Collection
 
 ```ts
@@ -51,7 +56,7 @@ const response =
     {
       title: 'ai-sdk-js-e2e',
       embeddingConfig: {
-        modelName: 'text-embedding-ada-002-v2'
+        modelName: 'text-embedding-ada-002'
       },
       metadata: []
     },