Preface the example in the style of the rest of the doc

Author: weirdwater

content/en/docs/apidocs-mxsdk/apidocs/frontend/pluggable-widgets/pluggable-widgets-client-apis/_index.md

@@ -74,15 +74,8 @@ Note that `isExecuting` indicates only whether the current action is running. It
 
 The method `execute` triggers the action. It returns nothing and does not guarantee that the action will be started synchronously. But when the action does start, the component will receive a new prop with the `isExecuting` flag set.
 
-When the action property [defines action variables](/apidocs-mxsdk/apidocs/pluggable-widgets-property-types/#action-xml-elements), the `execute()` method expects an object map containing a property for each variable. The variables may be undefined. Given an action property with variables as defined below, `execute()` accepts the following input:
-
-```xml
-<actionVariables>
-    <actionVariable key="lat" type="Decimal" caption="Latitude of selected location" />
-    <actionVariable key="long" type="Decimal" caption="Longitude of selected location" />
-    <actionVariable key="label" type="String" caption="Label of the selected location" />
-</actionVariables>
-```
+When the action property [defines action variables](/apidocs-mxsdk/apidocs/pluggable-widgets-property-types/#action-xml-elements), the `execute()` method expects an object map containing a property for each variable. The variables may be passed as undefined, but need to be set explicitly.  
+Given an action property that defines two `Decimal` variables `lat` and `long`, and a `String` variable named `label`, its `execute()` method accepts the following input.
 
 ```ts
 interface MapWidgetProps {