changes: Update 4.0 changes about marks (#912)

Author: johannes-wolf

CHANGES.md

@@ -17,6 +17,7 @@
 - Added support for passing a stroke style to the canvas top-level element, see `canvas(stroke: <stroke>, ...)`
 - Added support for user-defined coordinate systems. See `register-coordinate-resolver(<callback>)`
 - The default style value for `mark.transform-shape` changed to `false`
+- Harpoon marks changed side (on a line from (0, 0) to (1, 0), the end mark now appears on the left side/top)
 
 # 0.3.4
 - Fixed a bug with rendering curves with Typst 0.13.1