Update README.md

update acquisition timeline

README.md

@@ -66,7 +66,7 @@ The dataset covers 70 labeled areas across 9 land surface classes in the Mont-Bl
 ### Acquisition Timeline
 
 <p align="left">
-  <img src="https://cdn-uploads.huggingface.co/production/uploads/68ee4ed89a6f942b016af50f/C7Gap9Lx_xMg85oDUroY1.png" 
+  <img src="https://cdn-uploads.huggingface.co/production/uploads/68ee4ed89a6f942b016af50f/lHqcrTZ7P3DvjVqQhGeAF.png" 
        alt="Enhanced Acquisition Timeline" 
        width="50%">
 </p>
@@ -306,4 +306,3 @@ apache 2-0
 ## 8. Acknowledgements
 
 The authors would like to thank the *Spanish Instituto Nacional de Técnica Aeroespacial* (INTA) for providing the PAZ images (Project AO-001-051).
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