Update stop_beats.md

Another example with less decimals

docs/opcodes/stop_beats.md

@@ -5,6 +5,7 @@ opcode_name: "stop_beats"
 Used in Cakewalk Dimension Pro and DropZone, alongside [delay_beats], to play slices of loops at specific points in the bar.
 ## Examples
 ```sfz
+delay_beats=1 stop_beats=1.5
 delay_beats=25.9922 stop_beats=26.0964  
 ```
 ## Practical Considerations