Update src/content/docs/en/guides/upgrade-to/v6.mdx

Author: florian-lefebvre

src/content/docs/en/guides/upgrade-to/v6.mdx

@@ -123,7 +123,7 @@ const result = await emitESMImage(imageId, false, false);
 const result = await emitImageMetadata(imageId);
 ```
 
-<ReadMore>Read more about [`emitImageMetadata()`](/en/reference/image-service-reference/#emitesmimage).</ReadMore>
+<ReadMore>Read more about [`emitImageMetadata()`](/en/reference/image-service-reference/#emitimagemetadata).</ReadMore>
 
 ## Changed Defaults