add message about tails and make elementary 5 ambigous as they have point releases

roles/netbootxyz/templates/menu/live-elementary.ipxe.j2

@@ -7,7 +7,7 @@ set os elementary OS
 menu ${os} - Current Arch [ ${arch} ]
 iseq ${arch} x86_64 && set arch_a amd64 || set arch_a ${arch}
 item --gap ${os} Versions
-item elementaryos-5-default-squash ${space} ${os} 5.0 (Juno)
+item elementaryos-5-default-squash ${space} ${os} 5 (Juno)
 choose live_version || goto live_exit
 goto ${live_version}
 
@@ -33,4 +33,4 @@ boot
 
 :live_exit
 clear menu
-exit 0
+exit 0

roles/netbootxyz/templates/menu/live-tails.ipxe.j2

@@ -5,6 +5,7 @@ goto ${menu} ||
 :live_menu
 set os Tails
 menu ${os} - Current Arch [ ${arch} ]
+item --gap Currently networking is not functional for this live image
 iseq ${arch} x86_64 && set arch_a amd64 || set arch_a ${arch}
 item --gap ${os} Versions
 item tails-4.0-default-squash ${space} ${os} 4.0