Add Homebrew + Scoop install instructions to README

Author: Coding-Dev-Tools

README.md

@@ -194,4 +194,16 @@ MIT — see [LICENSE](LICENSE)
 npm install -g deadcode-cli
 ```
 
+Or install via Homebrew (macOS/Linux):
+```bash
+brew tap Coding-Dev-Tools/tap
+brew install deadcode
+```
+
+Or install via Scoop (Windows):
+```bash
+scoop bucket add Coding-Dev-Tools https://github.com/Coding-Dev-Tools/scoop-bucket
+scoop install deadcode
+```
+
 Then run: `deadcode --help`