doc: Update README.md

Author: andreaangiolillo

openapi/v1-deprecated/README.md

@@ -3,5 +3,7 @@
 > [!WARNING]  
 > The APIs in these OpenAPI Specifications are deprecated. Please use the OpenAPI Specifications of the v2 APIs available at [openapi/v2](../v2).
 
+[![OpenAPI (jp)](https://img.shields.io/badge/openapi-click%20to%20preview-rgb(71%2C162%2C72)?style=for-the-badge&logo=mongodb)](https://htmlpreview.github.io/?https://github.com/mongodb/openapi/blob/main/openapi/v1-deprecated/branded-preview.html)
+[![GO SDK (jp)](https://img.shields.io/badge/GO%20SDK-click%20to%20open-rgb(21%2C151%2C183)?style=for-the-badge&logo=go)](https://github.com/mongodb/go-client-mongodb-atlas)
 
 This folder contains the OpenAPI Specifications of the MongoDB Atlas Administration API (1.0).