add thx

README.md

@@ -102,5 +102,5 @@ Special thanks to [Eric Bailey](https://github.com/ericwbailey) for helping me r
 
 While I was unaware of [WTFForms](http://wtfforms.com/) when starting this project, it is still a great example of what can be done with only CSS, and served as an excellent baseline to compare against. Thank you <a href="https://twitter.com/mdo">mdo</a> and to those involved with that project.
 
-Additional thanks to [Josh Drumm](https://twitter.com/wwnjp), [James Curd](https://github.com/aminimalanimal), [Adrian Roselli](http://adrianroselli.com/), [Sara Soueidan](https://www.sarasoueidan.com/), [Heydon Pickering](https://inclusive-components.design/), [Richard Keizer](https://codepen.io/rakeizer) and [Alexander Farkas](https://github.com/aFarkas). They have each provided inspiration or excellent resources that have been quite helpful in the building of these components.
+Additional thanks to [Josh Drumm](https://twitter.com/wwnjp), [James Curd](https://github.com/aminimalanimal), [Adrian Roselli](http://adrianroselli.com/), [Sara Soueidan](https://www.sarasoueidan.com/), [Heydon Pickering](https://inclusive-components.design/), [Richard Keizer](https://codepen.io/rakeizer), [Chris O'Brien](https://github.com/a11ycob) and [Alexander Farkas](https://github.com/aFarkas). They have each provided inspiration or excellent resources that have been quite helpful in the building of these components.