Docs: Update release note contributors to new format

editions/prerelease/tiddlers/Release 5.2.3.tid

@@ -5,10 +5,6 @@ tags: ReleaseNotes
 title: Release 5.2.3
 type: text/vnd.tiddlywiki
 
-\define contributor(username)
-<a href="https://github.com/$username$" style="text-decoration:none;font-size:24px;" class="tc-tiddlylink-external" target="_blank" rel="noopener noreferrer"><img src="https://github.com/$username$.png?size=32" width="32" height="32"/> @<$text text=<<__username__>>/></a>
-\end
-
 //[[See GitHub for detailed change history of this release|https://github.com/Jermolene/TiddlyWiki5/compare/v5.2.2...master]]//
 
 ! Plugin Improvements
@@ -106,30 +102,32 @@ type: text/vnd.tiddlywiki
 
 [[@Jermolene|https://github.com/Jermolene]] would like to thank the contributors to this release who have generously given their time to help improve TiddlyWiki:
 
-* <<contributor Arlen22>>
-* <<contributor BramChen>>
-* <<contributor btheado>>
-* <<contributor BurningTreeC>>
-* <<contributor damscal>>
-* <<contributor es-kha>>
-* <<contributor EvidentlyCube>>
-* <<contributor FlashSystems>>
-* <<contributor flibbles>>
-* <<contributor FSpark>>
-* <<contributor fu-sen>>
-* <<contributor ibnishak>>
-* <<contributor jeremyredhead>>
-* <<contributor joshuafontany>>
-* <<contributor kookma>>
-* <<contributor linonetwo>>
-* <<contributor Marxsal>>
-* <<contributor MaxGyver83>>
-* <<contributor ndarilek>>
-* <<contributor oflg>>
-* <<contributor pmario>>
-* <<contributor rmunn>>
-* <<contributor saqimtiaz>>
-* <<contributor simonbaird>>
-* <<contributor Telumire>>
-* <<contributor tobibeer>>
-* <<contributor tw-FRed>>
+<<.contributors """
+Arlen22
+BramChen
+btheado
+BurningTreeC
+damscal
+es-kha
+EvidentlyCube
+FlashSystems
+flibbles
+FSpark
+fu-sen
+ibnishak
+jeremyredhead
+joshuafontany
+kookma
+linonetwo
+Marxsal
+MaxGyver83
+ndarilek
+oflg
+pmario
+rmunn
+saqimtiaz
+simonbaird
+Telumire
+tobibeer
+tw-FRed
+""">>