Update README.md

extensions/ima/README.md

@@ -19,7 +19,7 @@ pass the `ImaAdsMediaSource` to `ExoPlayer.prepare`.
 You can try the IMA extension in the ExoPlayer demo app. To do this you must
 You can try the IMA extension in the ExoPlayer demo app. To do this you must
 select and build one of the `withExtensions` build variants of the demo app in
 select and build one of the `withExtensions` build variants of the demo app in
 Android Studio. You can find IMA test content in the "IMA sample ad tags"
 Android Studio. You can find IMA test content in the "IMA sample ad tags"
-section of the demo app.
+section of the app.
 
 
 [sample ad tags]: https://developers.google.com/interactive-media-ads/docs/sdks/android/tags
 [sample ad tags]: https://developers.google.com/interactive-media-ads/docs/sdks/android/tags