Improve the phrasing

Author: dhananjayj-dev

fern/docs/pages/sdks/mobile/flutter/quickstart.mdx

@@ -48,7 +48,7 @@ DevRev.configure(appID: "abcdefg12345")
 
 ## Sample app
 
-A sample app with use cases for the DevRev Flutter plugin has been provided as a part of our [public repository](https://github.com/devrev/devrev-sdk-flutter). To set up and run the sample app:
+A sample app with use cases for the DevRev SDK for Flutter has been provided as a part of our [public repository](https://github.com/devrev/devrev-sdk-flutter). To set up and run the sample app:
 
 1. Navigate to the `sample` directory:
    ```sh