Somewhat unrelated but do people have links to share that walk you through taking Llama2 model and feeding it local data - confluence links, Google docs, plain

Somewhat unrelated but do people have links to share that walk you through taking Llama2 model and feeding it local data - confluence links, Google docs, plain text documents etc. I came across embeddings and langchain but was curious if people had thoughts on better ways to go about it as a newcomer experiment.