Update index.md

Corrected the triple-star remark on the platform compatibility table. They were in the Android column but are obviously for Browser.

Author: Hunv

docs/concepts/services/storage-provider/index.md

@@ -130,8 +130,8 @@ Only supported on the OS, with physical file paths, primarily only desktop.
 | `OpenFileBookmarkAsync` | ✔* | ✔* | ✔* | ✔* | ✔ | ✔ | ✔ |
 | `OpenFolderBookmarkAsync` | ✔* | ✔* | ✔* | ✔* | ✔ | ✔ | ✔ |
 | `OpenFilePickerAsync` | ✔** | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
-| `SaveFilePickerAsync` | ✔** | ✔ | ✔ | ✔ | ✔ | ✔*** | ✖ |
-| `OpenFolderPickerAsync` | ✔** | ✔ | ✔ | ✔ | ✔ | ✔*** | ✔ |
+| `SaveFilePickerAsync` | ✔** | ✔ | ✔ | ✔ | ✔*** | ✔ | ✖ |
+| `OpenFolderPickerAsync` | ✔** | ✔ | ✔ | ✔ | ✔*** | ✔ | ✔ |
 | `TryGetFileFromPathAsync` | ✔ | ✔ | ✔ | ✔ | ✖ | ✖ | ✖ |
 | `TryGetFolderFromPathAsync` | ✔ | ✔ | ✔ | ✔ | ✖ | ✖ | ✖ |
 | `TryGetWellKnownFolderAsync` | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
@@ -140,4 +140,4 @@ Only supported on the OS, with physical file paths, primarily only desktop.
 
 ** Managed file picker works only on desktop platforms where it's possible to open a custom window.
 
-*** Only Chromium based browsers have a proper support for file pickers. 
+*** Only Chromium based browsers have a proper support for file pickers.