Update README.md

README.md

@@ -368,7 +368,7 @@ This work was performed using HPC/AI resources from GENCI-IDRIS (Grant 2022-A013
 
 ## Contact
 <hr style='margin-top:-1em; margin-bottom:0' />
-If you have any questions, issues or feedback, you can contact us at: ai-challenge@ign.fr 
+If you have any questions, issues or feedback, you can contact us at: <b>ai-challenge@ign.fr</b> 
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