Add note on making smaller colour patch set

README.md

@@ -47,3 +47,9 @@ Under Linux:
     $ readagain.sh
 
 Under Windows, the included batch files run similarly to the linux ones above.
+
+## Number of Patches
+
+The default behaviour of these scripts is to profile using 3 pages worth of
+colour patches. It is also possible to print just one, but lowering the number
+of patches in `gencharts.sh` from 1584 to 528.

win/gencharts.bat

@@ -1,3 +1,3 @@
 SET /P NAME= < profilename
-targen -v -d 2 -G -g 32 -f 1584 %NAME%
+targen -v -d 2 -G -g 32 -f 528 %NAME%
 printtarg -v -iCM -h -a 0.62 -A 1.68 -R 1 -T 300 -p A4 %NAME%