Merge pull request #19 from rust-lang/link-in-readme

Add a link to the guide in the readme.

Author: KodrAus

README.md

@@ -2,6 +2,8 @@
 
 Welcome to the Standard Library Development Guide! This book is for anybody who is contributing to, or who is reviewing contributions to, the standard library. It aims to capture everything you need to know through the whole lifecycle of a standard library feature, from inception through to an initial unstable implementation, through to stabilization, and eventually maybe deprecation.
 
+**The latest version of this guide is available on https://std-dev-guide.rust-lang.org/**
+
 ### Contributing to the guide
 
 The guide is a very early work in progress. It still has big gaps. If there's a section you'd like to flesh out, please feel free to submit a PR or raise an issue!