Update CHANGELOG

Author: mbostock

CHANGELOG.md

@@ -52,7 +52,7 @@ Plot.plot({
 })
 ```
 
-When a text mark’s *text* channel, or the *title* channel on any mark, is specified as numbers or dates, the values are now automatically formatted (in the U.S. English locale) to improve readability. For the *text* channel, the default *fontVariant* option additionally changes to tabular-nums. The text mark now additionally allows the *fontSize* to be specified as a CSS length (*e.g.*, “12pt”), keyword (*e.g.*, “x-large”), or percentage.
+When a text mark’s *text* channel, or the *title* channel on any mark, is specified as numbers or dates, the values are now automatically formatted (in the U.S. English locale) to improve readability. For the *text* channel, the default *fontVariant* option additionally changes to tabular-nums. The text mark now also allows *fontSize* to be specified as a CSS length (*e.g.*, “12pt”), keyword (*e.g.*, “x-large”), or percentage.
 
 All marks now support the new standard *href* channel and *target* option, turning the mark into a clickable link.