Add headings in NOTES

diff --git a/NOTES b/NOTES
index 27bf31998fecd9695110173fe0a4d36e54e42c23..7ab098f74d88054ef1f587967c5067c8d4c60187 100644 (file)
--- a/NOTES
+++ b/NOTES
@@ -1,4 +1,5 @@
-Precise pixel layouts for mosaic graphics:
+Precise pixel layouts for mosaic graphics
+=========================================
 
 Based on a 6x10 grid of pixels:
 
@@ -16,6 +17,9 @@ Based on a 6x10 grid of pixels:
 Mosaic characters are not smoothed, and smoothing also doesn't apply
 between mosaic characters and adjacent alphanumeric characters.
 
+Character sets
+==============
+
 The SAA5050 series is generally compatible with the G0 primary
 character sets defined by ETSI EN 300 706 V1.2.1:
 
@@ -97,6 +101,9 @@ can.
 0x6D 0xFEA1 # ARABIC LETTER HAH ISOLATED FORM (also final?)
 0x6E 0xFEA5 # ARABIC LETTER KHAH ISOLATED FORM (also final?)
 
+Misc
+====
+
 UK patent number 1343298 (filed 1971 by Mullard) describes the
 character rounding technique used by the SAA5050.
 
@@ -105,13 +112,16 @@ font into something useful.  A 50-unit circular pen generates Bedstead
 Plotter.  A 100×50-unit, 20° rectangular pen generates a surprisingly
 good Bedstead Calligraphic.
 
+Typography
+==========
+
 Typographers seem to like explaining how to design their languages'
 unique letters:
 
 Æ and æ:
 https://medium.com/@frodefrodefrode/designing-the-letter-%C3%A6-862cffbe22b
 
-Polish characters
+Polish characters:
 http://www.twardoch.com/download/polishhowto/
 
 ẞ:
@@ -124,6 +134,9 @@ https://glyphsapp.com/learn/localize-your-font-catalan-punt-volat
 Microsoft have their own suggestions:
 https://docs.microsoft.com/en-gb/typography/develop/character-design-standards/
 
+WebKit 'palt' bug
+=================
+
 As of 2024, Safari on Apple platforms mis-displays the Bedstead Web
 page.  The 'palt' feature is being mis-applied to U+0020 SPACE
 characters.  Most of them end up not being narrowed, but some instead