Typo

Author: ThomasTJdev

README.md

@@ -261,7 +261,7 @@ Publish a message.
   - message: string
 
 **Optional:**
-  - qos: int     = 1, 2 or 3
+  - qos: int     = 0, 1 or 2
   - retain: bool = true or false
 
 **Publish message:**

src/nmqtt.nim

@@ -673,7 +673,7 @@ proc publish*(ctx: MqttCtx, topic: string, message: string, qos=0, retain=false)
   ##  - message: string
   ##
   ## **Optional:**
-  ##  - qos: int     = 1, 2 or 3
+  ##  - qos: int     = 0, 1 or 2
   ##  - retain: bool = true or false
   ##
   ##