Rephrase Windows installation instruction

doc/user-guide/src/installation/other.md

@@ -3,19 +3,21 @@
 The primary installation method, as described at <https://rustup.rs>, differs
 by platform:
 
-* On Windows, download and run the [`rustup-init.exe` built for the
-  `x86_64-pc-windows-msvc` target][setup]. In general, this is the build of
-  `rustup` one should install on Windows. This will require the Visual C++
+* On Windows, download and run the `rustup-init.exe` built for the
+  [`x86_64-pc-windows-msvc`] or [`aarch64-pc-windows-msvc`] target.
+  In general, this is the build of `rustup` one should install on Windows,
+  depending on the OS architecture. This will require the Visual C++
   Build Tools 2019 or equivalent (Visual Studio 2019, etc.) to already be
-  installed. If you would prefer to install GNU toolchains or the i686 or aarch64
+  installed. If you would prefer to install GNU toolchains or the i686
   toolchains by default this can be modified at install time, either
   interactively, with the `--default-host` flag, or after installation
   via `rustup set default-host`.
 * On Unix, run `curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh` in your shell. This
   downloads and runs [`rustup-init.sh`], which in turn downloads and runs the
   correct version of the `rustup-init` executable for your platform.
 
-[setup]: https://static.rust-lang.org/rustup/dist/x86_64-pc-windows-msvc/rustup-init.exe
+[`x86_64-pc-windows-msvc`]: https://static.rust-lang.org/rustup/dist/x86_64-pc-windows-msvc/rustup-init.exe
+[`aarch64-pc-windows-msvc`]: https://static.rust-lang.org/rustup/dist/aarch64-pc-windows-msvc/rustup-init.exe
 [`rustup-init.sh`]: https://static.rust-lang.org/rustup/rustup-init.sh
 
 `rustup-init` accepts arguments, which can be passed through the shell script.