docs: Update README with shields and macOS installation info

Author: yellow-footed-honeyguide

README.md

@@ -1,9 +1,13 @@
 # facad
 
+[![Documentation](https://img.shields.io/badge/documentation-doxygen-f5b836.svg)](https://yellow-footed-honeyguide.github.io/facad/)
+[![versions](https://img.shields.io/repology/repositories/facad?color=f5b836)](https://repology.org/project/facad/versions)
+
 A modern, colorful directory listing tool for the command line.
 
 ![facad in action](assets/facad_2_18.jpg)
 
+
 ## Features
 > Designed for both novice users and power users,<br>
 > facad feature set aims to enhance file management experience with<br>
@@ -21,23 +25,25 @@ A modern, colorful directory listing tool for the command line.
 ### Dependencies
 - Pure C implementation without any dependency
 
+### macOS
+facad is available through Homebrew. To install, run:
+```bash
+brew install facad
+```
+
 ### I use Arch btw?
 Just use the script from AUR:
 ```bash
 yay -S facad
 ```
 
-### Build 
+### Build & Install from source
 ```bash
 git clone https://github.com/yellow-footed-honeyguide/facad.git
 cd facad
 mkdir build && cd build
 meson setup .. && ninja
-```
-
-### Install
-For system-wide installation (may require elevated privileges like `sudo`):
-```bash
+# for system-wide installation (may require elevated privileges like `sudo`):
 sudo ninja install
 ```