Merge pull request #1 from AaronDewes/patch-1

Update README.md

Author: jonathanpallant

README.md

@@ -2,8 +2,9 @@
 
 This repository is the fork of [`rust-lang/rust`] we use at Ferrocene to
 upstream the changes we make to the Rust toolchain. This is **not** the source
-code of the [Ferrocene toolchain][ferrocene], which is hosted in a private
-repository.
+code of the [Ferrocene toolchain][ferrocene], which is hosted in
+[this repository][ferrocene-git].
 
 [`rust-lang/rust`]: https://github.com/rust-lang/rust
 [ferrocene]: https://www.ferrocene.dev
+[ferrocene-git]: https://github.com/ferrocene/ferrocene