Add credits and changelog

Author: Starkku

CREDITS.md

@@ -282,6 +282,7 @@ This page lists all the individual contributions to the project by their author.
   - Bugfixes to map trigger action `125 Build At...`
   - Owner change during buildup bugfix
   - Subterranean harvester pathfinding fix
+  - Attached animation draw offset customizations
 - **Morton (MortonPL)**:
   - `XDrawOffset` for animations
   - Shield passthrough & absorption

docs/Whats-New.md

@@ -467,6 +467,8 @@ New:
 - CellSpread in cylinder shape (by TaranDahl)
 - CellSpread damage check if victim is in air or on floor (by TaranDahl)
 - OpenTopped range bonus and damage multiplier customization for passengers (by Ollerus)
+- [Attached animation draw offset customizations](Fixed-or-Improved-Logics.md#draw-offset-customization) (by Starkku)
+- [Draw offset rules for AttachEffect animations](New-or-Enhanced-Logics.md#attached-effects) by (Starkku)
 
 Vanilla fixes:
 - Fixed sidebar not updating queued unit numbers when adding or removing units when the production is on hold (by CrimRecya)