added Langroid under tools for deploying LLMs

README.md

@@ -304,6 +304,7 @@ The above tables coule be better summarized by this wonderful visualization from
 - [promptfoo](https://github.com/typpo/promptfoo) - Test your prompts. Evaluate and compare LLM outputs, catch regressions, and improve prompt quality.
 - [Agenta](https://github.com/agenta-ai/agenta) -  Easily build, version, evaluate and deploy your LLM-powered apps.
 - [Serge](https://github.com/serge-chat/serge) - a chat interface crafted with llama.cpp for running Alpaca models. No API keys, entirely self-hosted!
+- [Langroid](https://github.com/langroid/langroid) - Harness LLMs with Multi-Agent Programming
 
 ## Tutorials about LLM
 - [Andrej Karpathy] State of GPT [video](https://build.microsoft.com/en-US/sessions/db3f4859-cd30-4445-a0cd-553c3304f8e2)