docs(install): Improve and extend Installation docs

manual/src/installation.md

@@ -1,55 +1,75 @@
 # Installation
 
-Difftastic [provides GitHub
-releases](https://github.com/Wilfred/difftastic/releases) with
-prebuilt binaries for Windows, macOS and Linux.
+Diffstatic can be installed as pre-built binaries or using various package managers.
 
-If you're a Homebrew user, you can install
+## Pre-Built Binaries
+
+Diffstatic releases are published as [GitHub releases](https://github.com/Wilfred/difftastic/releases) with pre-built binaries for Windows, macOS and Linux.
+Open the [latest release page](https://github.com/Wilfred/difftastic/releases/latest), download the file matching your OS and CPU architecture, and extract the `difft` executable application file.
+
+## Package Manager
+
+### macOS
+
+If you're a **Homebrew** user, you can install
 [difftastic](https://formulae.brew.sh/formula/difftastic) with `brew`.
 
 ```
 $ brew install difftastic
 ```
 
-If you're an Arch Linux user, you can install
+### Linux and Unix
+
+If you're an **Arch Linux** user, you can install
 [difftastic](https://archlinux.org/packages/extra/x86_64/difftastic/)
 with `pacman`.
 
 ```
 $ sudo pacman -S difftastic
 ```
 
-If you're a Nix user, you can install
+If you're a **Nix** user, you can install
 [difftastic](https://github.com/NixOS/nixpkgs/blob/master/pkgs/tools/text/difftastic/default.nix)
 with `nix-env`.
 
 ```
 $ nix-env --install difftastic
 ```
 
-If you're a Fedora user, you can install [difftastic](https://packages.fedoraproject.org/pkgs/rust-difftastic/difftastic/) with `dnf`.
+If you're a **Fedora** user, you can install [difftastic](https://packages.fedoraproject.org/pkgs/rust-difftastic/difftastic/) with `dnf`.
 
 ```
 $ sudo dnf install difftastic
 ```
 
-If you're a FreeBSD user, you can install
+If you're a **FreeBSD** user, you can install
 [difftastic](https://www.freshports.org/textproc/difftastic/)
 with `pkg`.
+
 ```
 $ sudo pkg install difftastic
 ```
 
-If you're a Windows user, you can install
+### Windows
+
+If you're a Windows user using **Windows Package Manager** (*WinGet*), you can install difftastic with `winget`.
+
+```
+$ winget install difftastic
+```
+
+If you're a Windows user using **Scoop**, you can install
 [difftastic](https://scoop.sh/#/apps?q=difftastic)
 with `scoop`.
+
 ```
 $ scoop install difftastic
 ```
 
-If you're a Windows user, you can install
+If you're a Windows user using **Chocolatey**, you can install
 [difftastic](https://community.chocolatey.org/packages/difftastic)
 with `choco`.
+
 ```
 $ choco install difftastic
 ```