0. Installs, Imports and API Keys
1. Loading PDFs and chunking with LangChain
2. Embedding text and storing embeddings
3. Creating retrieval function
4. Creating chatbot with chat memory

Note: I have used a sample document file that is a research paper on "A RESEARCH ON CLOUD COMPUTING" by Benneth Chukwuemeka Uzoma and Isokpehi Bonaventure Okhuoya

Thanks to Liam Ottley for guiding through this project through his informative youtube video:

Create Your Own ChatGPT with PDF Data in 5 Minutes (LangChain Tutorial)