docs(README): add a stargazers graph

README.md

@@ -96,3 +96,7 @@ For more general discussions about Mutiny, you can:
 ## 🧪 Publications
 
 Julien Ponge, Arthur Navarro, Clément Escoffier, and Frédéric Le Mouël. 2021. **[Analysing the Performance and Costs of Reactive Programming Libraries in Java](https://doi.org/10.1145/3486605.3486788).** *In Proceedings of the 8th ACM SIGPLAN International Workshop on Reactive and Event-Based Languages and Systems (REBLS ’21)*, October 18, 2021, Chicago, IL, USA. ACM, New York, NY, USA, 10 pages. [(PDF)](https://hal.inria.fr/hal-03409277/document)
+
+## Stargazers over time
+
+[![Stargazers over time](https://starchart.cc/smallrye/smallrye-mutiny.svg?variant=adaptive)](https://starchart.cc/smallrye/smallrye-mutiny)