fix: plugin experimental docs

docs/components/Plugin.md

@@ -1,13 +1,15 @@
 # Plugin Component
 
+_NOTE:_ This component is experimental and is available for import from `@dhis2/app-runtime/experimental`. The api for this component is not guaranteed to be stable.
+
 A wrapper that creates an iframe for a specified plugin and establishes a two-way communication channel with said plugin, allowing you to pass props (including callbacks between an app and a plugin). Note that the plugin must be built using the app-platform with entryPoints.plugin specified in the d2.config.js file.
 
 ## Basic Usage (Defining a plugin within an app)
 
-Within an app you can specify a plugin (either by providing its short name `pluginShortName`, or by specifying a URL directly (`pluginSource`). If you have provided `pluginSource`, this will take precedence (Note: lookup logic is TBD? Should we allow a URL only in development mode, for example?).
+Within an app you can specify a plugin (either by providing its short name `pluginShortName`, or by specifying a URL directly (`pluginSource`). If you have provided `pluginSource`, this will take precedence.
 
 ```jsx
-import { Plugin } from '@dhis2/app-runtime'
+import { Plugin } from '@dhis2/app-runtime/experimental'
 
 // within the app
 const MyApp = () => (