docs: add OpenSSF Best Practices baseline badge to README

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: ihor-sokoliuk

README.md

@@ -11,6 +11,7 @@
 [![License: MIT](https://img.shields.io/badge/license-MIT-blue?style=flat-square)](LICENSE)
 [![mcp-searxng MCP server](https://glama.ai/mcp/servers/ihor-sokoliuk/mcp-searxng/badges/score.svg)](https://glama.ai/mcp/servers/ihor-sokoliuk/mcp-searxng)
 [![OpenSSF Scorecard](https://api.scorecard.dev/projects/github.com/ihor-sokoliuk/mcp-searxng/badge)](https://scorecard.dev/viewer/?uri=github.com/ihor-sokoliuk/mcp-searxng)
+[![OpenSSF Baseline](https://www.bestpractices.dev/projects/13143/baseline)](https://www.bestpractices.dev/projects/13143)
 
 An [MCP server](https://modelcontextprotocol.io/introduction) that integrates the [SearXNG](https://docs.searxng.org) API, giving AI assistants web search capabilities.