Update working-with-the-docker-registry.md

"Storage optimization" should be plural. There are several optimizations done as a process.

Author: Amitabh1989

content/packages/working-with-a-github-packages-registry/working-with-the-docker-registry.md

@@ -20,7 +20,7 @@ shortTitle: Docker registry
 <!-- Main versioning block. Short page for dotcom -->
 {% ifversion fpt or ghec %}
 
-{% data variables.product.prodname_dotcom %}'s Docker registry (which used the namespace `docker.pkg.github.com`) has been replaced by the {% data variables.product.prodname_container_registry %} (which uses the namespace `https://ghcr.io`). The {% data variables.product.prodname_container_registry %} offers benefits such as granular permissions and storage optimization for Docker images.
+{% data variables.product.prodname_dotcom %}'s Docker registry (which used the namespace `docker.pkg.github.com`) has been replaced by the {% data variables.product.prodname_container_registry %} (which uses the namespace `https://ghcr.io`). The {% data variables.product.prodname_container_registry %} offers benefits such as granular permissions and storage optimizations for Docker images.
 
 Docker images previously stored in the Docker registry are being automatically migrated into the {% data variables.product.prodname_container_registry %}. For more information, see "[AUTOTITLE](/packages/working-with-a-github-packages-registry/migrating-to-the-container-registry-from-the-docker-registry)" and "[AUTOTITLE](/packages/working-with-a-github-packages-registry/working-with-the-container-registry)."