feat: updated to 13B ggmlv3.q5_K_S model as q6_K model size > 10GB

chore: reverted to old installation config as the latest one caused ERROR: Could not build wheels for llama-cpp-python, which is required to install pyproject.toml-based projects

chore: updated installation command and model download link

feat: updated to 13B ggmlv3.q6_K model

feat: first import

initial commit