.NET - add godot example link

src/app/dotnet/godot/page.mdx

@@ -1,4 +1,4 @@
-import { DocImage, createMetadata } from "@doc";
+import { OpenSourceCard, DocImage, createMetadata } from "@doc";
 
 export const metadata = createMetadata({
 	title: "Thirdweb .NET SDK in Godot",
@@ -28,3 +28,14 @@ To add the Thirdweb .NET SDK to your Godot project, you will need to manually ed
   <!-- Update with the latest version when necessary -->
 </ItemGroup>
 ```
+
+## Example Project
+
+An example Godot project integrating the Thirdweb .NET SDK is available below.
+
+<OpenSourceCard
+	title="Godot Template"
+	description="A Godot project template with the Thirdweb .NET SDK integrated."
+	href="https://github.com/thirdweb-example/thirdweb-godot"
+	isLibrary={false}
+/>