docs(install): cargo install dir inaccurate

Fixes: #1139
Signed-off-by: Christina Sørensen <christina@cafkafk.com>

INSTALL.md

@@ -10,7 +10,9 @@ If you already have a Rust environment set up, you can use the `cargo install` c
 
     cargo install eza
 
-Cargo will build the `eza` binary and place it in `$HOME/.local/share/cargo/bin/eza`.
+Cargo will build the `eza` binary and place it in your `CARGO_INSTALL_ROOT`.
+For more details on installation location see [the cargo
+book](https://doc.rust-lang.org/cargo/commands/cargo-install.html#description).
 
 ### Cargo (git)