Add Perplexity MCP server to README.md

Adding the Perplexity MCP server with a link to Perplexity's official MCP repo.

README.md

@@ -77,6 +77,7 @@ Official integrations are maintained by companies building production ready MCP
 - <img height="12" width="12" src="https://neo4j.com/favicon.ico" alt="Neo4j Logo" /> **[Neo4j](https://github.com/neo4j-contrib/mcp-neo4j/)** - Neo4j graph database server (schema + read/write-cypher) and separate graph database backed memory
 - <img height="12" width="12" src="https://avatars.githubusercontent.com/u/183852044?s=48&v=4" alt="Neon Logo" /> **[Neon](https://github.com/neondatabase/mcp-server-neon)** - Interact with the Neon serverless Postgres platform
 - <img height="12" width="12" src="https://oxylabs.io/favicon.ico" alt="Oxylabs Logo" /> **[Oxylabs](https://github.com/oxylabs/oxylabs-mcp)** - Scrape websites with Oxylabs Web API, supporting dynamic rendering and parsing for structured data extraction.
+- <img height="12" width="12" src="https://www.perplexity.ai/favicon.ico" alt="Perplexity Logo" /> **[Perplexity](https://github.com/ppl-ai/modelcontextprotocol)** - An MCP server that connects to Perplexity's Sonar API, enabling real-time web-wide research in conversational AI.
 - <img height="12" width="12" src="https://qdrant.tech/img/brand-resources-logos/logomark.svg" /> **[Qdrant](https://github.com/qdrant/mcp-server-qdrant/)** - Implement semantic memory layer on top of the Qdrant vector search engine
 - **[Raygun](https://github.com/MindscapeHQ/mcp-server-raygun)** - Interact with your crash reporting and real using monitoring data on your Raygun account
 - <img height="12" width="12" src="https://www.rember.com/favicon.ico" alt="Rember Logo" /> **[Rember](https://github.com/rember/rember-mcp)** - Create spaced repetition flashcards in [Rember](https://rember.com) to remember anything you learn in your chats