📝 adapt readme

Author: EmanuelSommer

README.md

@@ -15,8 +15,11 @@ uncertainty estimation.
 
 In particular, **bde** implements **Microcanonical Langevin Ensembles (MILE)** as
 introduced in [*Microcanonical Langevin Ensembles: Advancing the Sampling of Bayesian Neural Networks* (ICLR 2025)](https://arxiv.org/abs/2502.06335).
+A conceptual overview of MILE is shown below (in general implementation details of this package are not exactly matching this diagram):
 
-![MILE Overview](doc/_static/img/flowchart.png)
+<div style="width: 60%; margin: auto;">
+    <img src="doc/_static/img/flowchart.png" alt="MILE Overview" style="width: 100%;">
+</div>
 
 Installation
 ------------