Update README for v1.1.0

- [ ] Add gif demos for each model (1 image per model)
  - Video: `<#TODO#>`
- [ ] Add png demos for each model (3~4 images per model)
  - Image1: `<#TODO#>`
  - Image2: `<#TODO#>`
  - Image3: `<#TODO#>`
  - Image4: `<#TODO#>`