Issue: Many unnecessary files and folders within the NeMo Guardrails lab

[programmah]

Many unnecessary files and folders are included within the NeMo Guardrails lab, making navigation within the lab difficult. The lab should not have the entire clone repository but a folder containing only needed files, folders, and notebooks. The Deployment_Guide.md file should explicitly state the type of services and requirements (openai and nemo llm service) to run the lab.