docs: Add note on the body requirement (#3941)

* Add note on the body requirement

* Remove obsolete example

Author: grego952

docs/extensibility/30-details-summary.md

@@ -23,7 +23,10 @@ Extra parameters might be available for specific widgets.
 
 #### Status Body
 
-The **data.details.status.body** is an array of objects. By default listed values are displayed in two columns. Adding parameter **fullWidth: true** will display values in one column. The **data.details.status.body** accepts one widget (for example [ConditionList](./50-list-and-details-widgets.md#conditionList))
+The **data.details.status.body** is an array of objects. By default, listed values are displayed in two columns. Adding parameter **fullWidth: true** displays values in one column. The **data.details.status.body** accepts one widget (for example, [ConditionList](./50-list-and-details-widgets.md#conditionList)).
+
+> [!NOTE]
+> The **data.details.status.body** field is required for the **data.details.status** to render properly.
 
 See the following examples:
 
@@ -48,19 +51,6 @@ details:
         source: status.conditions
 ```
 
-```yaml
-details:
-  status:
-    - name: Replicas
-      source: status.replicas
-    - name: Containers
-      source: status.containers
-      fullWidth: true
-    - name: Condition details
-      widget: ConditionList
-      source: status.conditions
-```
-
 #### Status Header
 
 The **data.details.status.header** accepts one widget (for example [Badge](./50-list-and-details-widgets.md#badge)), displayed on the right side of the **Status** section header. This widget is used to summarize the status of the resource.