Add cname for react-compare-slider

Author: nerdyman

cnames_active.js

@@ -2576,6 +2576,7 @@ var cnames_active = {
   "react-chartjs-2": "reactchartjs.github.io/react-chartjs-2",
   "react-chef": "web-slate.github.io/react-chef",
   "react-ck": "abelflopes.github.io/react-ck",
+  "react-compare-slider": "cname.vercel-dns.com",
   "react-comfort": "ruben-arushanyan.github.io/react-comfort",
   "react-component-shell": "ruben-arushanyan.github.io/react-component-shell",
   "react-coroutine": "alexeyraspopov.github.io/react-coroutine",