net/mosquitto: update readme with protocol versions

Mosquitto has supported v3.1.1 of the mqtt protocol since verson 1.3

Signed-off-by: Karl Palsson <karlp@remake.is>

net/mosquitto/Makefile

@@ -44,9 +44,9 @@ define Package/$(PKG_NAME)-nossl
 endef
 
 define Package/$(PKG_NAME)/default/description
- mosquitto is a message broker that supports v3.1 of the MQ Telemetry
-Transport protocol. MQTT provides a lightweight method for
-messaging using a publish/subscribe model.
+Mosquitto is an open source (BSD licensed) message broker that implements
+the MQTT protocol version 3.1 and 3.1.1. MQTT provides a lightweight
+method of carrying out messaging using a publish/subscribe model.
 
 This package also includes some basic support for configuring via UCI
 endef
@@ -119,7 +119,7 @@ define Package/libmosquitto/default/description
 use by any third party software that wants to communicate with a
 mosquitto server.
 
-Should be useable for communicating with any MQTT v3.1 compatible
+Should be useable for communicating with any MQTT v3.1/3.1.1 compatible
 server, such as IBM's RSMB, in addition to Mosquitto
 endef