Update README.md

README.md

@@ -94,15 +94,15 @@ The EuroBERT family exhibits strong multilingual performance across domains and
 - The smaller EuroBERT-210m generally outperforms all similarly sized systems.
 
 <div>
-  <img src="img/multilingual.pdf" width="100%"  alt="EuroBERT" />
+  <img src="img/multilingual.png" width="100%"  alt="EuroBERT" />
 </div>
 
 <div>
-  <img src="img/code_math.pdf" width="100%"  alt="EuroBERT" />
+  <img src="img/code_math.png" width="100%"  alt="EuroBERT" />
 </div>
 
 <div>
-  <img src="img/long_context.pdf" width="100%"  alt="EuroBERT" />
+  <img src="img/long_context.png" width="100%"  alt="EuroBERT" />
 </div>
 
 ### Suggested Fine-Tuning Hyperparameters