Render document links for model images

We should support navigating to https://hub.docker.com/r/ai/llama3.3 and https://huggingface.co/bartowski/Llama-3.2-1B-Instruct-GGUF for the `model` attributes.
```YAML
models:
  testA:
    model: ai/llama3.3
  testB:
    model: hf.co/bartowski/Llama-3.2-1B-Instruct-GGUF
```