* rebase the modify to ipex-llm * modify the typo
* Rename bigdl/llm to ipex_llm * rm python/llm/src/bigdl * from bigdl.llm to from ipex_llm
* add langchain rag on gpu * add rag example in readme * add trust_remote_code in TransformersEmbeddings.from_model_id * add trust_remote_code in TransformersEmbeddings.from_model_id in cpu