Add PSC voting results and thread (#1019)

Co-authored-by: sethg <sethg@geographika.co.uk>

Author: github-actions[bot]

en/development/rfc/ms-rfc-140.txt

@@ -6,7 +6,7 @@ MS RFC 140: MapServer Homepage
 
 :Author: 	Seth Girvin
 :Contact: 	sethg@geographika.co.uk
-:Last Updated:  2025-01-23
+:Last Updated:  2025-05-09
 :Version: 	MapServer 8.6
 :Status: 	Draft
 
@@ -232,3 +232,7 @@ TODO
 
 4. Voting History
 =================
+
++1 from PSC members TomK, SethG, MikeS, DanielM, JeromeB, SteveL
+
+See https://lists.osgeo.org/pipermail/mapserver-dev/2025-March/017219.html