Fix typos in README

[nlln19]

Changes

• Fixed spelling mistakes:

  • Preperation → Preparation
  • preperation → preparation
  • derivered → derived
  • seperate → separate
  • enviroment → environment
  • downloadinng → downloading
  • prepareing → preparing
  • unnzip → unzip
  • evaluataion → evaluation

• Improved capitalization and formatting:

  • docker image → Docker image
  • 16bit → 16-bit
  • json format → JSON format
  • Scannet → ScanNet
  • gpus → GPUs
  • pytorch-lightning API → PyTorch Lightning API
  • resnet50 → ResNet-50
  • config.py → config.py formatted as inline code

• Fixed pluralization:

  • Quadro RTX 6000's → Quadro RTX 6000s

Testing

Documentation-only change. No code was changed.