Update 4-publish-package.md

Author: MutemwaRMasheke

articles/governance/machine-configuration/how-to/develop-custom-package/4-publish-package.md

@@ -110,7 +110,7 @@ $contentUri = New-AzStorageBlobSASToken @tokenParams
 ## Next step
 
 > [!div class="nextstepaction"]
-> [Sign a custom machine configuration package](./5-sign-package.md)
+> [Sign a custom machine configuration package](./6-sign-package.md)
 
 <!-- Reference link definitions -->
 [01]: ../../overview.md