docs: recommend winget over Scoop for Windows installation

Author: m_igashi

README.md

@@ -36,15 +36,15 @@ brew install M-Igashi/tap/mp3rgain
 
 ### Windows
 
-**Scoop** (recommended):
+**winget** (recommended):
 ```powershell
-scoop bucket add mp3rgain https://github.com/M-Igashi/scoop-bucket
-scoop install mp3rgain
+winget install M-Igashi.mp3rgain
 ```
 
-**winget**:
+**Scoop**:
 ```powershell
-winget install M-Igashi.mp3rgain
+scoop bucket add mp3rgain https://github.com/M-Igashi/scoop-bucket
+scoop install mp3rgain
 ```
 
 **Download and extract**: