improve docs

#2167
https://answers.microsoft.com/en-us/windows/forum/all/special-name-for-microsoft-store-app-user-data/fb9becf3-4c3e-4fd4-9000-e8596e6adb16

installation.md

@@ -20,7 +20,9 @@ Settings, logs and temporary cache files are stored in your [`appData`](https://
 | OS | Path |
 |-|-|
 | Windows | `%APPDATA%\LosslessCut` |
-| MacOS | `~/Library/Application Support` |
+| Windows (MS Store Version) | `C:\Users\%USERNAME%\AppData\Local\Packages\57275mifi.no.LosslessCut_eg8x93dt4dxje\LocalCache\Roaming\LosslessCut` |
+| MacOS | `~/Library/Application Support/LosslessCut` |
+| MacOS (App Store version) | `~/Library/Containers/no.mifi.losslesscut/Data/Library/Application Support/LosslessCut` |
 | Linux | `$XDG_CONFIG_HOME/LosslessCut` or `~/.config/LosslessCut` |
 
 [What is Windows `%APPDATA%`?](https://superuser.com/questions/632891/what-is-appdata)