Update README.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: friggeri

README.md

@@ -4,7 +4,7 @@
 
 [![NPM Downloads](https://img.shields.io/npm/dm/%40github%2Fcopilot-sdk?label=npm)](https://www.npmjs.com/package/@github/copilot-sdk)
 [![PyPI - Downloads](https://img.shields.io/pypi/dm/github-copilot-sdk?label=PyPI)](https://pypi.org/project/github-copilot-sdk/)
-[![NuGet Downloads](https://img.shields.io/nuget/dt/GitHub.Copilot.Sdk?label=NuGet)](https://www.nuget.org/packages/GitHub.Copilot.Sdk)
+[![NuGet Downloads](https://img.shields.io/nuget/dt/GitHub.Copilot.SDK?label=NuGet)](https://www.nuget.org/packages/GitHub.Copilot.SDK)
 
 Agents for every app.