Update Previous Version links of published specs.

Author: dbaron

geometry/Overview.bs

@@ -6,6 +6,9 @@ Level: 1
 Status: ED
 ED: http://dev.w3.org/fxtf/geometry/
 TR: http://www.w3.org/TR/geometry-1/
+Previous Version: http://www.w3.org/TR/2014/CR-geometry-1-20141125/
+Previous Version: http://www.w3.org/TR/2014/WD-geometry-1-20140918/
+Previous Version: http://www.w3.org/TR/2014/WD-geometry-1-20140626/
 Previous Version: http://www.w3.org/TR/2014/WD-geometry-1-20140522/
 Previous Version: http://www.w3.org/TR/2013/WD-matrix-20130919/
 Group: fxtf