which manages the bootstrapping process. More information about it can be found
by running `./x.py --help` or reading the [rustc dev guide][rustcguidebuild].
-[gettingstarted]: https://rustc-dev-guide.rust-lang.org/getting-started.md
+[gettingstarted]: https://rustc-dev-guide.rust-lang.org/getting-started.html
[rustcguidebuild]: https://rustc-dev-guide.rust-lang.org/building/how-to-build-and-run.html
### Building on a Unix-like system