Fix decode_sniff.py link in readme

Author: PetteriAimonen

README.md

@@ -58,9 +58,9 @@ The VCD file can then be imported to [PulseView](https://sigrok.org/wiki/PulseVi
 
 ## Decoding captured data
 
-Use [decode_sniff_data_rp2350.py](utils/decode_sniff_data_rp2350.py) to decode the captured files:
+Use [decode_sniff.py](utils/decode_sniff.py) to decode the captured files:
 
-    python decode_sniff_data_rp2350.py sniff.dat
+    python decode_sniff.py sniff.dat
 
 ## Data format