Update version in README

Author: adhesivee

README.md

@@ -11,7 +11,7 @@ It encourages to adapt to existing implementations instead the other way around.
 First define the version to be used and set it as a property
 ```xml
 <properties>
-    <myndocs.oauth.version>0.2.0</myndocs.oauth.version>
+    <myndocs.oauth.version>0.2.1</myndocs.oauth.version>
 </properties>
 ```
 
@@ -257,4 +257,4 @@ fun revokeRefreshToken(token: String)
 
 ```
 
-When `AccessToken` is passed to `storeAccessToken` and it contains a `RefreshToken`, then `storeAccessToken` is also responsible for saving the refresh token.
+When `AccessToken` is passed to `storeAccessToken` and it contains a `RefreshToken`, then `storeAccessToken` is also responsible for saving the refresh token.