feat: add Heroku Platform MCP server to Readme

Author: justinwilaby

README.md

@@ -79,6 +79,7 @@ Official integrations are maintained by companies building production ready MCP
 - <img height="12" width="12" src="https://grafana.com/favicon.ico" alt="Grafana Logo" /> **[Grafana](https://github.com/grafana/mcp-grafana)** - Search dashboards, investigate incidents and query datasources in your Grafana instance
 - <img height="12" width="12" src="https://framerusercontent.com/images/KCOWBYLKunDff1Dr452y6EfjiU.png" alt="Graphlit Logo" /> **[Graphlit](https://github.com/graphlit/graphlit-mcp-server)** - Ingest anything from Slack to Gmail to podcast feeds, in addition to web crawling, into a searchable [Graphlit](https://www.graphlit.com) project.
 - <img height="12" width="12" src="https://greptime.com/favicon.ico" alt="Greptime Logo" /> **[GreptimeDB](https://github.com/GreptimeTeam/greptimedb-mcp-server)** - Provides AI assistants with a secure and structured way to explore and analyze data in [GreptimeDB](https://github.com/GreptimeTeam/greptimedb).
+- <img height="12" width="12" src="https://www.herokucdn.com/favicons/favicon.ico" alt="Heroku Logo" /> **[Heroku](https://github.com/heroku/heroku-mcp-server)** - Interact with the Heroku Platform through LLM-driven tools for managing apps, add-ons, dynos, databases, and more.
 - <img height="12" width="12" src="https://img.alicdn.com/imgextra/i3/O1CN01d9qrry1i6lTNa2BRa_!!6000000004364-2-tps-218-200.png" alt="Hologres Logo" /> **[Hologres](https://github.com/aliyun/alibabacloud-hologres-mcp-server)** - Connect to a [Hologres](https://www.alibabacloud.com/en/product/hologres) instance, get table metadata, query and analyze data.
 - <img height="12" width="12" src="https://hyperbrowser-assets-bucket.s3.us-east-1.amazonaws.com/Hyperbrowser-logo.png" alt="Hyperbrowsers23 Logo" /> **[Hyperbrowser](https://github.com/hyperbrowserai/mcp)** - [Hyperbrowser](https://www.hyperbrowser.ai/) is the next-generation platform empowering AI agents and enabling effortless, scalable browser automation.
 - **[IBM wxflows](https://github.com/IBM/wxflows/tree/main/examples/mcp/javascript)** - Tool platform by IBM to build, test and deploy tools for any data source