Update sender and receiver models in example setup

Author: RaspberryFpc

docs/index.md

@@ -44,8 +44,8 @@ It outputs directly to **ALSA** (also compatible with PipeWire using its ALSA br
 
 ## 💡 Example Test Setup
 
-* **Sender**: Raspberry Pi 4 streaming YouTube audio via Wi-Fi
-* **Receiver**: Raspberry Pi 4 connected via Ethernet
+* **Sender**: Raspberry Pi 4 or Pi 5 streaming YouTube audio via Wi-Fi
+* **Receiver**: Raspberry Pi 4 or Pi 5 connected via Ethernet
 * **Output**: 3.5 mm jack → HiFi amplifier, or HDMI/USB audio
 
 Result: Stable low-latency playback in a typical home network.