Update Kevel company name (formerly Adzerk) (#377)

README.md

@@ -133,7 +133,7 @@ Since `0.4.0`, Etaoin can play script files created in the interactive
 - [Roomkey](https://www.roomkey.com/)
 - [Barrick Gold](http://www.barrick.com/)
 - [Doctor Evidence](http://drevidence.com/)
-- [Adzerk](https://adzerk.com/)
+- [Kevel (formerly Adzerk)](https://kevel.com/)
 - [Guaranteed Rate](https://www.rate.com/)
 
 You are welcome to submit your company into that list.