Update README.md

Author: wrk2bike

README.md

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 # Terraform Windows DNS Provider
 
-![](https://github.com/protolabs-oss/terraform-provider-windns/workflows/Go/badge.svg)
+![](https://github.com/protolabs-oss/terraform-provider-windns/workflows/Go-Win/badge.svg)
 
 This is the repository for a Terraform Windows DNS Provider, which can be used to create DNS records in Microsoft Windows DNS.