documentation: Update installation

docs/installation/package-manager/android.md

@@ -0,0 +1,7 @@
+# Android
+
+## Termux
+
+```shell
+pkg add sing-box
+```

docs/installation/package-manager/macOS.md

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+# macOS
+
+## Homebrew (core)
+
+```shell
+brew install sing-box
+```
+
+## Homebrew (Tap)
+
+```shell
+brew tap sagernet/sing-box
+brew install sagernet/sing-box/sing-box
+```

docs/installation/package-manager/windows.md

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+# Windows
+
+## Chocolatey
+
+```shell
+choco install sing-box
+```
+
+## winget
+
+```shell
+winget install sing-box
+```