install-and-setup.md: Document binary installation with cargo-binstall

I also mentioned this in the changelog, since people reading it are more likely
to use `binstall` than most.

CHANGELOG.md

@@ -52,6 +52,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### New features
 
+* `jj`'s stable release can now be installed with [`cargo binstall jj-cli`](https://github.com/cargo-bins/cargo-binstall).
+
 * `jj workspace add` now takes a `--revision` argument.
 
 * `jj workspace forget` can now forget multiple workspaces at once.

docs/install-and-setup.md

@@ -12,6 +12,19 @@ version should work on all distributions).
 If you'd like to install a prerelease version, you'll need to use one of the
 options below.
 
+#### Cargo BInstall
+
+If you use [`cargo-binstall`](https://github.com/cargo-bins/cargo-binstall), you
+can install the same binaries of the last `jj` release from GitHub as follows:
+
+```shell
+# Will put the jj binary for the latest release in ~/.cargo/bin by default
+cargo binstall --strategy crate-meta-data jj-cli
+```
+
+Without the `--strategy` option, you may get equivalent binaries that should be
+compiled from the same source code.
+
 
 ### Linux