update readme

README.md

@@ -1,6 +1,7 @@
 # Get Playdate SDK
 
-This GitHub Action delivers specified [Playdate] SDK.
+<img src="//help.play.date/images/toolbar-icon-playdate.svg" alt="drawing" height="10em"/>
+This GitHub Action delivers specified [Playdate SDK][Playdate].
 
 [Playdate]: https://play.date/dev/#cardSDK
 
@@ -12,20 +13,29 @@ This GitHub Action delivers specified [Playdate] SDK.
 
 ## Usage Example
 
-Download the latest version of dove
+Install the latest version of Playdate SDK
 
 ```yaml
 - name: Install Playdate SDK
   id: playdate
-  uses: pd-rs/get-playdate-sdk@0.1.4
+  uses: pd-rs/get-playdate-sdk@0.1.6
   with:
-    # possible values: version x.x.x or "latest"
-    version: latest
+    version: 2.0.0 # possible values: version `x.x.x` or `latest`
 
 - name: usage
   run: |
-    echo "SDK root: $PLAYDATE_SDK_PATH"
-    echo "SDK root: ${{ steps.playdate.outputs.root }}"
+    echo "SDK path env: $PLAYDATE_SDK_PATH"
+    echo "SDK root out: ${{ steps.playdate.outputs.root }}"
     echo "SDK version: ${{ steps.playdate.outputs.version }}"
-    pdc --version
+    pdc --version # because SDK/bin already in PATH
 ```
+
+## Supported platforms
+
+- macOS
+- Linux
+- Windows
+
+Note: for Windows there's [winget][] is used as source for specified SDK version, and as just installer-helper for `latest` version
+
+[winget]: https://github.com/idleberg/winget-pkgs/tree/master/manifests/p/Panic/PlaydateSDK