Update content/components/sensor/mcp3204.md

Channels typo

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

Author: markodraca

content/components/sensor/mcp3204.md

@@ -63,8 +63,8 @@ sensor:
     id: supply_voltage
     number: 7                     # MCP3208 pin number
 
-# Measures difference between CH1 (IN+) and CH2 (IN-)
-  - platform: mcp3204             # Attached to pin 7 of the MCP3208.
+# Measures difference between CH0 (IN+) and CH1 (IN-)
+  - platform: mcp3204             # Attached to pins 0-1 of the MCP3208 (differential pair).
     id: thermocouple_voltage
     number: 0                     # MCP32xx pin number
     diff_mode: true               # Enable differential mode