Update README.md

Author: taowen

README.md

@@ -5,6 +5,7 @@ record & replay or time travel debugging
 * [Django: kolo](https://kolo.app/)
 * [Redux: DevTools](https://chrome.google.com/webstore/detail/redux-devtools/lmhkpmbekcpmknklioeibfkpmmfibljd)
 * https://meiosis.js.org/tracer/
+* https://elm-lang.org/news/time-travel-made-easy
 
 # python