Remove dead link

Author: chenglou

README.md

@@ -18,8 +18,6 @@ See [CONTRIBUTING.md](CONTRIBUTING.md).
 * Thanks to [ninja-build](https://ninja-build.org), ReScript also comes with a blazing fast build tool on top of it, `ninja` is a truly [well engineered](http://aosabook.org/en/posa/ninja.html) scalable build tool
 * Thanks to [Bloomberg](https://www.techatbloomberg.com) and [Facebook](https://github.com/facebook/). This project began at Bloomberg and was published in 2016; without the support of Bloomberg, it would not have happened. This project's funded by Facebook since July/2017
 
-## [Roadmap](https://github.com/rescript-lang/rescript-compiler/wiki)
-
 ## History
 
 This project was originally created by [Hongbo Zhang](https://github.com/bobzhang) in 2015 and 
@@ -47,4 +45,4 @@ Refer to its copyright and license notices for information about its licensing.
 
 Note that OSS is for sharing of knowledge, but the authorship should be respected. Copyright headers in each file, Acknowledgements and History section in this file should be kept **intact**.
 
-See [Credits](./Credits.md) for more details.
+See [Credits](./Credits.md) for more details.