Include full list of requirements in README Prerequisites section

[ashsong-nv]

The current Prerequisites section does not list the full list of requirements to run the pipeline. It links to Morpheus requirements, and is missing a requirement for the pipeline to have internet access.

We should update the Prerequisites section of the README to include the full set of requirements.

• cuda 12.5 if using cloud-hosted NIM option (required by Morpheus 24.10), cuda 12.6 if using self-hosted NIM option (required by llama 3.1)
• Internet access
• docker
• docker compose
• all other requirements from Morpheus and Morpheus LLM