Increase SDialog logo height in README

Updated image height in README for better visibility.

Author: sergioburdisso

README.md

@@ -16,7 +16,7 @@ It standardizes a Dialog schema and offers persona‑driven multi‑agent simula
 Quick links: [Website](https://sdialog.github.io/) • [GitHub](https://github.com/idiap/sdialog) • [Docs](https://sdialog.readthedocs.io) • [API](https://sdialog.readthedocs.io/en/latest/api/sdialog.html) • [Demo (Colab)](https://colab.research.google.com/github/idiap/sdialog/blob/main/tutorials/demo.ipynb) • [Tutorials](https://github.com/idiap/sdialog/tree/main/tutorials) • [Datasets (HF)](https://huggingface.co/datasets/sdialog) • [Issues](https://github.com/idiap/sdialog/issues)
 
 <p align="center">
-  <img src="https://raw.githubusercontent.com/idiap/sdialog/master/docs/_static/sdialog-modules.png" alt="SDialog Logo" title="SDialog" height="500" />
+  <img src="https://raw.githubusercontent.com/idiap/sdialog/master/docs/_static/sdialog-modules.png" alt="SDialog Logo" title="SDialog" height="650" />
 </p>
 
 ## ✨ Key features