Update text/0000-roadmap-2019.md

Co-Authored-By: steveklabnik <steve@steveklabnik.com>

Author: ehuss

text/0000-roadmap-2019.md

@@ -151,7 +151,7 @@ The [cargo team 2019 roadmap](https://gist.github.com/nrc/6f0fb3b66d3b043aace302
 - **Finishing "almost complete" work:**
     - Work on [custom registries](https://github.com/rust-lang/cargo/issues/6589),
 [offline mode](https://github.com/rust-lang/cargo/issues/4686), and 
-[custom profiles](https://github.com/rust-lang/cargo/issues/2007) is nearly done, and we intend to see those items over the finish line.
+[improving profiles](https://github.com/rust-lang/rust/issues/48683) is nearly done, and we intend to see those items over the finish line.
 
 ## Community