Add line to mention below is select operation

Author: aditya-balachander

docs/data.md

@@ -256,6 +256,8 @@ versa.
 
 The `select` functionality is designed to streamline the mapping process by enabling the selection of specific records directly from Salesforce for lookups. This feature is particularly useful when dealing with non-insertable Salesforce objects and ensures that pre-existing records are used rather than inserting new ones. The selection process is highly customizable with various strategies, filters, and additional capabilities that provide flexibility and precision in data mapping.
 
+The following is an example of a `mapping.yaml` file where the `Event` sObject utilizes the `select` action:
+
 ```yaml
 Account:
     sf_object: Account