update changelog copy

CHANGELOG.md

@@ -2,8 +2,8 @@ Styles v3.0.0
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 - introduce dependency on a spritesheet:
 		- example for `light` theme https://protomaps.github.io/basemaps-assets/sprites/v3/light`
-- Change townspots from separate symbol layer to sprite layer
-- Style deployments need to depend on the spritesheet assets in addition to fonts.
+		- Style deployments need to depend on the spritesheet assets in addition to fonts.
+- Migrate town labels to single "symbol" style layer to specify linked "icon" and "text", using the new spritesheet to source the icon's image. This resolves a bug where townspot icons in the old places_locality_circle "circle" style layer were often orphaned (still displayed) even if the related text in the places_locality "symbol" style layer couldn't be placed. The circle style layer has been removed and consolidated into the symbol style layer.
 
 Styles v2.0.0
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