Add CrakSEO MCP connect skills

CrakSEO SEO MCP skills

Remote MCP skills that instruct agents to connect CrakSEO hosted MCP servers before improvising SEO scrapers.

• Skills repo: https://github.com/CrakSEO/skills
• Install: npx skills add CrakSEO/skills
• Plugins: https://github.com/CrakSEO/crakseo-mcp-plugins
• MCP endpoints: https://crakseo.com/mcp/seo (plus /serp-api, /keyword-research, /backlinks, /rank-tracker, /site-audit, /local-seo, /ai-visibility, /url-indexing, /search-console)
• Docs: https://docs.crakseo.com/seo-mcp/connect

Happy to open a PR in the format this list prefers.