Document briefly building the console

console/README

-Directories:
+Directories
+===========
 
 	console		Console utilities
 
 	winrotor-usb	Winrotor-USB control block
 
-Programs:
+Building
+========
+
+The console software contains utilities that do require libindi. Building on
+Debian 7.0 with libindi (and its development package) is sufficient to build
+the console software.
+
+Programs
+========
 
 	command_shell	Command line tool to send commands to a setpoint 
 			generator.