update

add frontend

Update Sliding_Window_Chunking.png

Update prompts.py

Update configparser.ini

Support GPT-4 Turbo

Fix nltk package error

Merge pull request #9 from junruxiong/dependabot/pip/langchain-0.0.308

Bump langchain from 0.0.305 to 0.0.308

clean up requirements.txt

optimise def merge_chunks logic

Update main.py

Update main.py

Support open-source and local LMMs

Merge pull request #5 from devtanna/update-typo