Updated changelog for 2.2.2

Author: KodeMunkie

doc/changes.txt

@@ -2,11 +2,13 @@ Image to ZX Spec Changes
 ------------------------
 
 Version 2.2.2
-- Fixed Java 17 compatibility
-- Removed hacks for native lib loading
-- Removed hacks for UI layout
-- Updated many dependency libraries
-- Updated Copyrights
+- Fixed Java 17 compatibility.
+- Fixed High res display font issue.
+- Fixed preview discrepancies between preview pane and main pane.
+- Removed hacks for native lib loading.
+- Removed hacks for UI layout.
+- Updated many dependency libraries.
+- Updated Copyrights.
 
 Version 2.2.1
 - Improved interlaced 256x384 output (fewer bad palette choices).