added credits for Glen & team

HISTORY.md

@@ -65,6 +65,7 @@
 
 ### 2022-08-03
 * gui: added credits for Bambi
+* gui: added credits for Glen & team
 
 ### 2022-08-02
 * cloud: update

src/gui.js

@@ -4862,6 +4862,7 @@ IDE_Morph.prototype.aboutSnap = function () {
         + '\nBrian Broll: Many bugfixes and optimizations'
         + '\nEckart Modrow: SciSnap! Extension'
         + '\nBambi Brewer: Birdbrain Robotics Extension Support'
+        + '\nGlen Bull & team: TuneScope Music Extension'
         + '\nIan Reynolds: UI Design, Event Bindings, '
         + 'Sound primitives'
         + '\nJadga Hügle: Icons and countless other contributions'