docs: add documentation of new parameter option shouldRenameFileOnUpload

doc/scenarioParametersConfiguration.md

@@ -123,7 +123,14 @@ information about it in the `options` field of the parameter description:
 - `connectorId`: the connector id to use in the dataset object that will be created with the Cosmo Tech API
 - `description`: the description to use in the dataset object that will be created with the Cosmo Tech API
 
-Also, if you want to have a default file present when creating a new scenario, you can provide the id of an existing
+When files uploaded by webapp users are sent to the back-end to be stored (for example in Azure Storage), the original
+file name is preserved. This behavior can be inconvenient when writing the parameters handler of your solution. If you
+want to have more predictable names for the files uploaded with the webapp, you can enable the option
+`options.shouldRenameFileOnUpload` to force the renaming of files uploaded by users before they are sent to the
+back-end. When this option is enabled, a new file name is generated by concatenating the parameter id with the extension
+of the uploaded file (e.g._initial_stock_dataset.csv_)
+
+Finally, if you want to have a default file present when creating a new scenario, you can provide the id of an existing
 dataset in the `defaultValue` property.
 
 Example:
@@ -140,6 +147,7 @@ parameters:
       connectorId: 'c-d7e5p9o0kjn9'
       description: 'Initial stock dataset part'
       defaultFileTypeFilter: '.zip,.csv,.json,.xls,.xlsx'
+      shouldRenameFileOnUpload: true
 ```
 
 ### Table parameters