[css-ui-4] Clarify affiliation

Author: frivoal

css-ui-4/Overview.bs

@@ -11,7 +11,7 @@ Group: csswg
 !Issue Tracking: https://wiki.csswg.org/spec/css4-ui#css4-ui-issues-list
 Status: ED
 Work Status: Exploring
-Editor: Florian Rivoal, Invited Expert, florian@rivoal.net, http://florian.rivoal.net
+Editor: Florian Rivoal, Invited Expert, on behalf of Bloomberg, florian@rivoal.net, http://florian.rivoal.net
 Ignored Terms: box-sizing, resize, text-overflow, caret-color, nav-up, nav-down, nav-left, nav-right
 Link Defaults: css-position-3 (property) position
 Link Defaults: css21 (property) float
@@ -929,13 +929,9 @@ This appendix is <em>informative</em>.
 This specification builds upon [[CSS3-UI]],
 which was edited and written for the most part
 by Tantek Çelik from 1999 to the present,
-first while representing Microsoft, then as an invited expert,
+first while representing Microsoft, then as an Invited Expert,
 and most recently while representing Mozilla.
 
-Later work on level 3 and on this level 4
-was done by Florian Rivoal,
-working on behalf of Bloomberg.
-
 Thanks to feedback and contributions from
 <span class="h-card">Rossen Atanassov</span>,
 <span class="h-card">Tab Atkins</span>,