Updated numbers for exact sizes for the readme page

[Sunspark-007]

Hi, to make it easier for people to know how to determine the correct pt size perhaps the text provided below could be added.

X.org is using a dpi of 96 at 100% scale. If someone is using a logical dpi of 144 (150% scale) then the correct pt size is pt / logical dpi's scale %:

Spleen 6x12: 9 Pt (12 pixels) = 9/150%=6 pt, 9/200%=4.5 pt
Spleen 8x16: 12 Pt (16 pixels) = 12/150%=8 pt, 12/200%=6 pt
Spleen 12x24: 18 Pt (24 pixels) = 18/150%=12 pt, 18/200%=9 pt
Spleen 16x32: 24 Pt (32 pixels) = 24/150%=16 pt, 24/200%=12 pt
Spleen 32x64: 48 Pt (64 pixels) = 48/150%=32 pt, 48/200%=24 pt

The general formula is pt size = font pixels / logical dpi * 72. So, 32 pixels/144 dpi*72=16 pt

Scaling % | DPI
100% | 96
125% | 120
150% | 144
175% | 168
200% | 192
225% | 216
250% | 240
300% | 288
400% | 384
500% | 480

64/384*72=12 pt for the 32x64 font if you were using 400% scaling on your fancy high resolution display.