Meta Llama: Documentation overhaul and API improvements

AI Impact Summary

Meta Llama has significantly improved its documentation and API ecosystem with a comprehensive overhaul. The migration to Docusaurus, standardization of Ollama and Fireworks providers with OpenAI compatibility, and promotion of the post_training and eval APIs to v1alpha represent a substantial investment in usability and developer experience. While these changes don't immediately require action, they lay the groundwork for future enhancements and improved integration with OpenAI.