Fix Java requirement
@@ -22,6 +22,7 @@ import WarningPasswordStorage from '../_admonitions/_password_storage.md';
* The latest [Java Development Kit (JDK)](https://www.oracle.com/java/technologies/downloads/).
* [Rust and Cargo](https://doc.rust-lang.org/cargo/getting-started/installation.html) to compile the binding.
* (for Linux only) `libudev`. You can install it with `apt install libudev-dev`.
+* pkg-config is needed (for Linux `apt install pkg-config`)
## Build the JAR for Your Operating System (Linux, macOS, Windows)
