Update HISTORY.md

HISTORY.md

@@ -26,7 +26,7 @@
     * new extension primitive for querying all variable names accessible from a specified scope (global, sprite, script)
     * new extension primitive for querying whether a watcher for a variable by name is shown onstage
     * new support for setting the translation via the API
-    * new "Tad" and "Jahrd" costume series, thanks, Meghan and Brian!
+    * new "Tad", "Jahrd" and "Derec" costume series, thanks, Meghan and Brian!
 * **Notable Changes:**
     * exporting a library includes dependencies (auto-select all referenced blocks)
     * exporting / importing a sprite includes dependencies (global custom blocks and palette categories)
@@ -63,6 +63,7 @@
 * threads, byob: added support for "menus" selector on primitives
 * extensions: new extension primitive for querying all variable names accessible from a specified scope (global, sprite, script)
 * extensions: new extension primitive for querying whether a watcher for a variable by name is shown onstage
+* new "Derec" costumes, thanks, Meghan and Brian!
 
 ### 2022-06-28
 * blocks, byob, threads: new "menus" selector for block attributes