Update preview-features.md

Updates to improve the wording

daprdocs/content/en/operations/configuration/preview-features.md

@@ -7,19 +7,19 @@ description: "How to specify and enable preview features"
 ---
 
 ## Overview
-Some features in Dapr are considered experimental when they are first released. These features require explicit opt-in in order to be used. The opt-in is specified in Dapr's configuration.
+Preview features in Dapr are considered experimental when they are first released. These preview features require explicit opt-in in order to be used. The opt-in is specified in Dapr's configuration.
 
-Currently, preview features are enabled on a per application basis when running on Kubernetes. A global scope may be introduced in the future should there be a use case for it.
+Preview features are enabled on a per application basis by setting configuration when running an application instance.
 
-### Current preview features
-Currently supported preview features can be seen [here]({{<ref support-preview-features>}}).
+### Preview features
+The current list of preview features can be found [here]({{<ref support-preview-features>}}).
 
 ## Configuration properties
 The `features` section under the `Configuration` spec contains the following properties:
 
 | Property       | Type   | Description |
 |----------------|--------|-------------|
-|name|string|The name of the preview feature that will be enabled/disabled
+|name|string|The name of the preview feature that is enabled/disabled
 |enabled|bool|Boolean specifying if the feature is enabled or disabled
 
 ## Enabling a preview feature