Update reference paper

README.md

@@ -161,3 +161,16 @@ features_mean = np.mean(features[0], axis=0)
 # features_mean = np.mean(features[0], axis=0) 
 # #features_max = np.max(features[0], axis=0)
 ```
+
+### BibTeX entry and citation info
+
+Please cite the [reference paper](https://arxiv.org/abs/2308.02142) if you use this model.
+
+```bibtex
+@article{loureiro2023tweet,
+  title={Tweet Insights: A Visualization Platform to Extract Temporal Insights from Twitter},
+  author={Loureiro, Daniel and Rezaee, Kiamehr and Riahi, Talayeh and Barbieri, Francesco and Neves, Leonardo and Anke, Luis Espinosa and Camacho-Collados, Jose},
+  journal={arXiv preprint arXiv:2308.02142},
+  year={2023}
+}
+```