Update page.mdx for thirdweb-mcp (#7096)

Signed-off-by: Jake Loo <2171134+jakeloo@users.noreply.github.com>

Author: jakeloo

apps/portal/src/app/nebula/mcp-server/integrations/mcp-clients/page.mdx

@@ -7,4 +7,9 @@ This server can be integrated with any client that supports the Model Context Pr
 
 1. Run the MCP server with the appropriate configuration
 2. Connect your MCP client to the server using the selected transport (stdio or SSE)
-3. Access thirdweb services through the exposed MCP tools
+3. Access thirdweb services through the exposed MCP tools
+
+
+#### References
+
+[thirdweb-mcp references](https://github.com/thirdweb-dev/ai/tree/main/python/thirdweb-mcp)