Add drips screenshot to README.md

Author: bertrik

README.md

@@ -1,14 +1,14 @@
 # verkeersdrukte
 Java application to serve traffic data from NDW in a friendly format
 
-See https://stofradar.nl/traffic for the live map.
+See https://stofradar.nl/traffic and https://stofradar.nl/drips for live maps.
 
-![Traffic map](images/traffic_map.png)
+![Traffic map](images/traffic_map.png) ![DRIPs](images/drips_map.png)
 
 You can access the underlying data by zooming in, clicking a measurement location and noting the site name,
 for example RWS01_MONIBAS_0121hrr0292ra.
 
-Each measurement location has a couple of endpoint associated with it, for example:
+Each measurement location has a couple of endpoints associated with it, for example:
 * Static data: https://stofradar.nl/traffic/static/RWS01_MONIBAS_0121hrr0292ra
 * Dynamic data, new data every minute: https://stofradar.nl/traffic/dynamic/RWS01_MONIBAS_0121hrr0292ra
 * SSE event stream with live data: https://stofradar.nl/traffic/dynamic/RWS01_MONIBAS_0121hrr0292ra/events