[css-ruby] post publication ED update

Author: frivoal

css-ruby-1/Overview.bs

@@ -8,6 +8,7 @@ Group: csswg
 ED: https://drafts.csswg.org/css-ruby-1/
 TR: https://www.w3.org/TR/css-ruby-1/
 Test Suite: https://www.w3.org/International/tests/repo/results/css-ruby
+Previous Version: https://www.w3.org/TR/2021/WD-css-ruby-1-20211202/
 Previous Version: https://www.w3.org/TR/2021/WD-css-ruby-1-20210310/
 Previous Version: https://www.w3.org/TR/2020/WD-css-ruby-1-20200429/
 Previous Version: https://www.w3.org/TR/2014/WD-css-ruby-1-20140805/
@@ -2217,6 +2218,11 @@ Changes</h2>
 
 	This section documents the changes since previous publications.
 
+<h3 id="changes-20211202">
+Changes since the 2 December 2021 WD</h3>
+
+None yet.
+
 <h3 id="changes-20200429">
 Changes since the 29 April 2020 WD</h3>