added the keploy as the official integration

[pratik-mahalle]

Add Keploy to the README as a recommended testing tool. The entry includes the Keploy logo, link, and a short description: “Capture real traffic to generate API tests and mocks.”

Server Details

• Server: N/A (docs-only change)
• Changes to: Documentation (top-level README.md)

Motivation and Context

• Improves discoverability of Keploy for contributors using or building MCP servers.
• Highlights a practical tool to generate API tests and mocks from real traffic, improving testing workflows.

How Has This Been Tested?

• Verified README renders correctly locally.
• Confirmed the Keploy link (https://keploy.io/) and logo URL resolve.
• Checked formatting remains consistent with the surrounding list.

Breaking Changes

• None. No changes to server code or configuration.
• Users do not need to update MCP client configurations.

Types of changes

• Bug fix
• New feature
• Breaking change
• Documentation update

Checklist

• My code/documentation follows the repository’s style guidelines
• I have updated documentation accordingly (README.md)
• I have read the MCP Protocol Documentation
• My changes follow MCP security best practices (N/A: docs-only)
• I have tested this with an LLM client
• New and existing tests pass locally
• I have added appropriate error handling
• I have documented all environment variables and configuration options

Additional context

• README entry added near related tools list:
  • Keploy: Capture real traffic to generate API tests and mocks.