chore: add contract testing link

Signed-off-by: JP-Ellis <[email protected]>

Author: JP-Ellis

docs/products/SmartBear MCP Server/mcp-server-capabilities.md

@@ -5,5 +5,6 @@ The SmartBear MCP Server provides access to multiple capabilities across our API
 ### Available Tools, Resources, and Prompts
 
 -   [API Hub](https://developer.smartbear.com/smartbear-mcp/docs/api-hub-integration) - provides portal management capabilities
+-   [API Hub - Contract Testing (PactFlow)](https://developer.smartbear.com/smartbear-mcp/docs/contract-testing-with-pactflow) - provides contract testing capabilities
 -   [Test Hub](https://developer.smartbear.com/smartbear-mcp/docs/test-hub-integration) - provides test management and execution capabilities
 -   [Insight Hub](https://developer.smartbear.com/smartbear-mcp/docs/insight-hub-integration) - provides error monitoring and debugging capabilities