Update README.md

README.md

@@ -152,7 +152,9 @@ print(result)
 
 ## ONNX Export
 
-An ONNX version of this model is available in the [onnx/](./onnx/) directory for use with high-performance inference engines such as Infinity.
+An ONNX version of this model {TBD} for use with high-performance inference engines such as Infinity.
+
+optimum-cli export onnx -m leonas5555/finnews-topic-single-classify
 
 ## License