README.md in agx-0.1.5 vs README.md in agx-0.2.0

@@ -47,21 +47,21 @@
 weeds = @agx_content_client.get("Weed", {publishDate: date.to_s})
 ```
 
 ### agX Sync API
 
-Setup agX Sync Client (OAuth 2 Authorization Code Flow)
+Setup agX Sync v4 Client (OAuth 2.0 / OpenID Connect 1.0 Authorization Code Flow)
 
 ***This requires that you have already previously authenticated and authorized
 a user to agX through the authorization code grant flow process and have
 persisted their sync ID, access token, refresh token, and access token
 expiration timestamp.***
 
 ```ruby
 @agx_sync_client = Agx::Sync::Client.new(
   client_id: "your_client_id",
   client_secret: "your_client_secret",
-  version: "v3",  # optional
+  version: "v4",  # optional
   sync_id: "agx_user_sync_id",
   access_token: "agx_user_agx_token",
   refresh_token: "agx_user_refresh_token",
   token_expires_at: "access_token_expiration_timestamp",
   transaction_id: "agx_user_previous_transaction_id" # optional,