This change attempts to build off of the existing "Agents vs. OpenAI Responses API" section of "AI Application Examples", and get into how several of the popular AI frameworks provide some form of OpenAI API compatibility, and how this fact can allow one to deploy such application on Llama Stack.
This change also
- introduces a simple LangChain/LangGraph example that runs on LLama Stack via use of OpenAI API compatibility API
- circles back to the Responses API, and introduces a page of external references to examples
- makes it clear that other OpenAI API compatibile AI frameworks can be added as the community has time to dive into them.
