Update README.md

Author: abuzuhri

README.md

@@ -57,7 +57,7 @@ Install-Package CSharpAmazonSpAPI
 - [x] [Solicitations](https://developer-docs.amazon.com/sp-api/docs/solicitations-api-v1-reference)
 - [x] [Token](https://developer-docs.amazon.com/sp-api/docs/tokens-api-v2021-03-01-reference)  [Use Case Guide](https://developer-docs.amazon.com/sp-api/docs/tokens-api-use-case-guide)
 - [x] [Authorization](https://developer-docs.amazon.com/sp-api/docs/authorization-api-v1-reference)
-- [ ] [Easy Ship](https://developer-docs.amazon.com/sp-api/docs/easy-ship-api-v2022-03-23-reference)
+- [x] [Easy Ship](https://developer-docs.amazon.com/sp-api/docs/easy-ship-api-v2022-03-23-reference)
 - [ ] [A+ Content](https://developer-docs.amazon.com/sp-api/docs/selling-partner-api-for-a-content-management)