README: add screenshots.
@@ -30,6 +30,14 @@ To show your tracks on a map, a 3rd party application (e.g., [OsmAnd](https://pl
<img alt="Donate using Liberapay" src="https://liberapay.com/assets/widgets/donate.svg" height="45">
</a>
+## Screenshots
+<div>
+ <img width="20%" src="fastlane/metadata/android/en-US/phoneScreenshots/screenshot_1.png">
+ <img width="20%" src="fastlane/metadata/android/en-US/phoneScreenshots/screenshot_2.png">
+ <img width="20%" src="fastlane/metadata/android/en-US/phoneScreenshots/screenshot_3.png">
+ <img width="20%" src="fastlane/metadata/android/en-US/phoneScreenshots/screenshot_4.png">
+</div>
+
## Project history
_OpenTracks_ is based upon Google _My Tracks app_ ([code](https://code.google.com/archive/p/mytracks/)).
