Update README.md

Signed-off-by: Fabiana 🚀  Campanari <113218619+FabianaCampanari@users.noreply.github.com>

Author: FabianaCampanari

README.md

@@ -1646,7 +1646,7 @@ After running Solver, you should get a solution like:
 
 <br>
 
-## [Result]():
+### [Result]():
 
 **The optimal assignment is:**
 - Task 1 to Machine 1 (cost 2)