mcp: dedicated MCP hub (#22969)

<!--Delete sections as needed -->

## Description

Update terminology and links in accordance to the new dedicated MCP Hub.

Signed-off-by: Craig <craig.osterhout@docker.com>
Co-authored-by: Craig Osterhout <103533812+craig-osterhout@users.noreply.github.com>

content/manuals/ai/mcp-catalog-and-toolkit/catalog.md

@@ -1,10 +1,10 @@
 ---
 title: Docker MCP Catalog
 description: Learn about the benefits of the MCP Catalog, how you can use it, and how you can contribute
-keywords: docker hub, mcp, mcp servers, ai agents, calatog, docker
+keywords: docker hub, mcp, mcp servers, ai agents, catalog, docker
 ---
 
-The [Docker MCP Catalog](https://hub.docker.com/catalogs/mcp) is a centralized, trusted registry for discovering, sharing, and running MCP-compatible tools. Seamlessly integrated into Docker Hub, it offers verified, versioned, and curated MCP servers packaged as Docker images. The catalog is also available in Docker Desktop.
+The [Docker MCP Catalog](https://hub.docker.com/mcp) is a centralized, trusted registry for discovering, sharing, and running MCP-compatible tools. Seamlessly integrated into Docker Hub, it offers verified, versioned, and curated MCP servers packaged as Docker images. The catalog is also available in Docker Desktop.
 
 The catalog solves common MCP server challenges:
 
@@ -32,10 +32,11 @@ Each tool in the MCP Catalog is packaged as a Docker image with metadata:
 - Connect tools to their preferred agents with simple configuration through the [MCP Toolkit](toolkit.md).
 - Pull and run tools using Docker Desktop or the CLI.
 
-Each catalog entry provides:
+Each catalog entry displays:
 
 - Tool description and metadata
 - Version history
+- List of tools provided by the MCP server
 - Example configuration for agent integration
 
 ## Use an MCP server from the catalog
@@ -44,11 +45,11 @@ To use an MCP server from the catalog, see [MCP toolkit](toolkit.md).
 
 ## Contribute an MCP server to the catalog
 
-The MCP server registry is available at https://github.com/docker/mcp-registry. To submit an MCP server:
+The MCP server registry is available at https://github.com/docker/mcp-registry. To submit an MCP server,
 follow the [contributing guidelines](https://github.com/docker/mcp-registry/blob/main/CONTRIBUTING.md).
 
 When your pull request is reviewed and approved, your MCP server is available in 24 hours on:
 
 - Docker Desktop's [MCP Toolkit feature](toolkit.md)
 - The [Docker MCP catalog](https://hub.docker.com/mcp)
-- The [Docker Hub](https://hub.docker.com/u/mcp) mcp namespace (for MCP servers built by Docker)
+- The [Docker Hub](https://hub.docker.com/u/mcp) `mcp` namespace (for MCP servers built by Docker)