Include screenshots in README

Author: slashdotdash

README.md

@@ -4,6 +4,12 @@ EventStore Dashboard is a tool to analyze [`EventStore`](https://hexdocs.pm/even
 
 It works as an additional page for the [`Phoenix LiveDashboard`](https://hexdocs.pm/phoenix_live_dashboard).
 
+![eventstore-dashboard-streams](https://user-images.githubusercontent.com/3167/150383255-eb9005a1-53f6-4c1e-9ef7-4534238ffa3c.png)
+
+![eventstore-dashboard-stream-events](https://user-images.githubusercontent.com/3167/150383321-4062cdf3-c820-4ef1-95ca-bc06cd3dfd31.png)
+
+![eventstore-dashboard-event](https://user-images.githubusercontent.com/3167/150383355-2f3a2e71-b3c5-495f-a79e-398b2f693c98.png)
+
 ## Integration with Phoenix LiveDashboard
 
 You can add this page to your Phoenix LiveDashboard by adding as a page in the `live_dashboard` macro at your router file.