[path_provider] Update readme

packages/path_provider/path_provider_aurora/README.md

@@ -13,7 +13,8 @@ Therefore, you have to include `path_provider_aurora` alongside `path_provider`
 ```yaml
 dependencies:
   path_provider: ^2.0.14
-  path_provider_aurora: ^0.0.0 # @todo Not published 
+  path_provider_aurora:
+    path: # path to folder with plugin
 ```
 
 ***.dart**
@@ -30,11 +31,11 @@ final Directory? downloadsDir = await getDownloadsDirectory();
 
 ## Supported APIs
 
-- [x] `getTemporaryDirectory`
+- [x] `getTemporaryDirectory` - Returns a directory location where user-specific non-essential (cached) data should be written
 - [ ] `getApplicationSupportDirectory`
 - [ ] `getLibraryDirectory`
-- [x] `getApplicationDocumentsDirectory`
+- [x] `getApplicationDocumentsDirectory` - Returns the directory containing user document files.
 - [ ] `getExternalStorageDirectory`
 - [ ] `getExternalCacheDirectories`
-- [x] `getExternalStorageDirectories` (There is no concept of External in Aurora OS, but this interface allows you to get the pictures/music/movies directory)
-- [x] `getDownloadsDirectory`
+- [x] `getExternalStorageDirectories` - There is no concept of External in Aurora OS, but this interface allows you to get the pictures/music/movies directory
+- [x] `getDownloadsDirectory`- Returns a directory for user's downloaded files.