Comments added to config file sample

dmrlink_SAMPLE.cfg

@@ -1,3 +1,19 @@
+# DMRLink Sample Configuration File
+# Rename to dmrlink.cfg and add your information
+# 
+# [NAME]        The name you want to use to identify the IPSC instance
+# ENABLED:      Should we communiate with this network? Handy if you need to
+#			    shut one down but don't want to lose the config
+# RADIO_ID:     This is the radio ID that DMRLink should use to communicate
+# PORT:         This is the UDP source port for DMRLink to use for this
+#               IPSC network, must be unique!!!
+# ALIVE_TIMER:  How many missed keep-alives before we remove a peer
+# AUTH_ENABLED: Do we use authenticated IPSC?
+# AUTH_KEY:     The Authentication key (up to 40 hex characters)
+# MASTER_IP:    IP address of the IPSC master
+# MASTER_PORT:  UDP port of the IPSC master
+#
+# ...Repeat the block for each IPSC network to join.
 
 [IPSC1]
 ENABLED: True