Update tuner/examples/punet/README.md

Co-authored-by: Jakub Kuderski <[email protected]>

tuner/examples/punet/README.md

@@ -21,6 +21,7 @@ For an initial trial to test the tuning loop, use:
 ```
 python punet_autotune.py 1286.mlir --num-candidates=1
 ```
+
 ### Dry Run Test
 To perform a dry run (no GPU required), use:
 ```