Created README for trace utility

tests/pc/trace/makefile

@@ -1,15 +1,3 @@
-#
-#	To load trace.com and trace.txt onto a virtual disk image that PCjs can access,
-#	add an "automount" setting to your PCjs <fdc> configuration, like so:
-#
-#		<fdc id="fdcNEC" automount='{B:{name:"Trace Tests",path:"/tests/pc/trace/trace.com;trace.txt"}}'/>
-#
-#	Alternatively, if you want to run the tests in another virtual PC environment (eg, VMware Fusion),
-#	you can create a .ISO image on OS X, like so:
-#
-#		hdiutil makehybrid -o ~/Sites/jsmachines/disks/pc/test/trace.iso ~/Sites/jsmachines/tests/pc/trace -iso -joliet
-#
-
 all: trace.com
 
 trace.com: trace.nasm