Various improvements

- Kerning improvements
- Updated README
- Removed Panose information
- Renamed subtables

README.md

@@ -7,11 +7,25 @@ This version omits a few ligatures that consistently looked bad on e-ink display
 ## How was this made?
 
 - A few ligatures were removed, namely: `ff`, `ffi`, `ffl`, `fl`, `fi`.
-- A tweak was made to ensure the `fi` kern pair looks good now that the ligature is gone.
+- Some minor tweaks to kern pairs were made to tighten up the look and feel of the font.
 - Improved line height metrics were set (updated ascent/descent metrics).
 - The font was renamed and re-exported with [FontForge](https://fontforge.org).
 - The copyright notice has been updated to reflect the new name.
 
+### Kern pair changes
+
+I've included a file called [kern.md](./doc/kern.md) in this repository. I've checked and improved kern pairs to ensure these particular sentences look fine; they include often tweaked kern pairs.
+
+### Export settings
+
+Make sure to check the following items when exporting as TTF:
+
+![Take a look at this screenshot.](./doc/export.png)
+
+In particular, **old style 'kern'** is important for compatibility with older devices.
+
+### Source files
+
 I've included the FontForge files in this repository.
 
 ## License
@@ -24,7 +38,7 @@ This font is _not_ related to the proprietary version, Charter BT.
 Copyright (c) 1989-1992, Bitstream Inc., Cambridge, MA.
 Copyright (c) 2009, 2010, 2011, 2012 Andrey V. Panov 
 Copyright (c) 2013-2024 Michael Sharpe
-Copyright (c) 2025 Nico Verbruggen
+Copyright (c) 2025-2026 Nico Verbruggen
 
 XCharter is an extension of Bitstream Charter, whose original license is reproduced below, as required under the terms of that license. The extension provides small caps, oldstyle figures and superior figures in all four styles, accompanied by LaTeX font support files.
 
@@ -41,4 +55,4 @@ is acknowledged as shown below on all unmodified copies of the 4 Charter
 Type 1 fonts.
 
 BITSTREAM CHARTER is a registered trademark of Bitstream Inc.
-```
+```

doc/kern.md

@@ -0,0 +1,13 @@
+AVATAR WAYWARD Type Volta Falcon
+Today We Youthfully Lyrical
+"Perfectly" (Tavern) T.V. 1/47
+rn rm fi fl ff ffi ffl
+WAVE AV. To Yo Pa. VA
+
+Youthful Tokyo avians waved toward
+the perfectly lyrical western tower,
+firmly welcoming every vagrant falcon
+
+falling felling filling folling
+nolling nalling nelling nilling
+hosting hasting hesting histing