[DOC] SQL agent to use non open AI models within langchain like LLama

[am5060]

HI - Firstly thank you so much for putting such gems out. I feel directionally teams will want to move away from open ai given the compute costs and the other open models getting better over time. Having the opportunity to toggle to use other models within langchain will be a huge help for open source folks!

[mdancho84]

Excellent! I'll include an example of how to use Ollama instead of OpenAI.