Merge pull request #621 from iterate-ch/iterate-ch/issue/616-windows

Fix typo

Author: dkocher

mountainduck/installation/index.md

@@ -150,7 +150,7 @@ The installation of the file system driver is not required for [_Integrated_](..
 :::{admonition} Manual Installation
 :class: tip
 ```
-msiexec /a "$((Get-AppxPackage io.mountainduck).InstallLocation)\Setup\Mountain Duck Support.msi"
+msiexec /i "$((Get-AppxPackage io.mountainduck).InstallLocation)\Setup\Mountain Duck Support.msi"
 ```
 :::