update linux dependencies (#21651)

# Objective

close #21334

## Solution

update linux dependencies in docs

Author: dearfl

docs/linux_dependencies.md

@@ -8,11 +8,7 @@ If you don't see your distro present in the list, feel free to add the instructi
 
 ```bash
 sudo apt-get install g++ pkg-config libx11-dev libasound2-dev libudev-dev libxkbcommon-x11-0
-```
-
-if using Wayland, you will also need to install
-
-```bash
+# optional if you disabled the wayland feature
 sudo apt-get install libwayland-dev libxkbcommon-dev
 ```
 
@@ -37,11 +33,7 @@ Following advice from before WSLg's release can lead to additional conflicts.
 
 ```bash
 sudo dnf install gcc-c++ libX11-devel alsa-lib-devel systemd-devel
-```
-
-if using Wayland, you will also need to install
-
-```bash
+# optional if you disabled the wayland feature
 sudo dnf install wayland-devel libxkbcommon-devel
 ```
 
@@ -226,7 +218,7 @@ for more information about `devShells`.
 Note that this template does not add Rust to the environment because there are many ways to do it.
 For example, to use stable Rust from nixpkgs, you can add `cargo` and `rustc` to `nativeBuildInputs`.
 
-[Here](https://github.com/NixOS/nixpkgs/blob/master/pkgs/by-name/ju/jumpy/package.nix)
+[nixpkgs#Jumpy](https://github.com/NixOS/nixpkgs/blob/master/pkgs/by-name/ju/jumpy/package.nix)
 is an example of packaging a Bevy program in nix.
 
 ## [OpenSUSE](https://www.opensuse.org/)
@@ -278,11 +270,7 @@ rustflags = ["-C", "target-feature=-crt-static"]
 ```sh
 sudo eopkg it -c system.devel
 sudo eopkg it g++ libx11-devel alsa-lib-devel
-```
-
-If using Wayland, you may also need to install
-
-```sh
+# optional if you disabled the wayland feature
 sudo eopkg it wayland-devel libxkbcommon-devel
 ```