Update readme

README.md

@@ -2,6 +2,12 @@
 
 A real-time 3D visualization of BlueSky's jetstream (firehose) feed, where each post materializes as a marble in a physics-enabled environment. The visualization provides an engaging way to observe and analyze the flow of posts on the BlueSky social network.
 
+# Usage
+
+Open [here](https://tijszwinkels.github.io/). [This is a pretty preconfigured one](https://tijszwinkels.github.io/bluesky-marbles/?fraction=1&size=0.5&words=hate%3A6cd926%2Clove%3A4f2aa4%2Chappy%3A0000ed%2Csad%3Ac4a4ce&onlySelected=true&timeout=91).
+
+This is animation of marbled falling in a glass vase.
+
 ## Features
 
 - **Real-time Visualization**: Each BlueSky post appears as a marble dropping into a transparent container