docs: add scoop installation method

docs/content/install.md

@@ -165,6 +165,19 @@ developers so it may be out of date. Its current version is as below.
 
 [![Chocolatey package](https://repology.org/badge/version-for-repo/chocolatey/rclone.svg)](https://repology.org/project/rclone/versions)
 
+### Scoop package manager {#windows-scoop}
+
+Make sure you have [Scoop](https://scoop.sh/) installed
+
+```
+scoop install rclone
+```
+
+Note that this is a third party installer not controlled by the rclone
+developers so it may be out of date. Its current version is as below.
+
+[![Scoop package](https://repology.org/badge/version-for-repo/scoop/rclone.svg)](https://repology.org/project/rclone/versions)
+
 ## Package manager installation {#package-manager}
 
 Many Linux, Windows, macOS and other OS distributions package and