docs(idempotency): cleanup default behavior section

Signed-off-by: heitorlessa <[email protected]>

Author: heitorlessa

docs/utilities/idempotency.md

@@ -728,15 +728,15 @@ graph TD;
 
 ### Customizing the default behavior
 
-Idempotent decorator can be further configured with **`IdempotencyConfig`** as seen in the previous example. These are the available options for further configuration
+You can override and further extend idempotency behavior via **`IdempotencyConfig`** with the following options:
 
 | Parameter                       | Default | Description                                                                                                                                                                                                                                |
 | ------------------------------- | ------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
 | **event_key_jmespath**          | `""`    | JMESPath expression to extract the idempotency key from the event record using [built-in functions](./jmespath_functions.md#built-in-jmespath-functions){target="_blank"}                                                                  |
-| **payload_validation_jmespath** | `""`    | JMESPath expression to validate whether certain parameters have changed in the event while the event payload                                                                                                                               |
+| **payload_validation_jmespath** | `""`    | JMESPath expression to validate whether certain parameters have changed in the event while the event payload _e.g., payload tampering._                                                                                                    |
 | **raise_on_no_idempotency_key** | `False` | Raise exception if no idempotency key was found in the request                                                                                                                                                                             |
-| **expires_after_seconds**       | 3600    | The number of seconds to wait before a record is expired                                                                                                                                                                                   |
-| **use_local_cache**             | `False` | Whether to locally cache idempotency results                                                                                                                                                                                               |
+| **expires_after_seconds**       | 3600    | The number of seconds to wait before a record is expired, allowing a new transaction with the same idempotency key                                                                                                                         |
+| **use_local_cache**             | `False` | Whether to cache idempotency results in-memory to save on persistence storage latency and costs                                                                                                                                            |
 | **local_cache_max_items**       | 256     | Max number of items to store in local cache                                                                                                                                                                                                |
 | **hash_function**               | `md5`   | Function to use for calculating hashes, as provided by [hashlib](https://docs.python.org/3/library/hashlib.html){target="_blank" rel="nofollow"} in the standard library.                                                                  |
 | **response_hook**               | `None`  | Function to use for processing the stored Idempotent response. This function hook is called when an existing idempotent response is found. See [Manipulating The Idempotent Response](idempotency.md#manipulating-the-idempotent-response) |