Update and create documentation using GitHub Pages

[qin-yu]

This PR introduces the new documentation site for Go-Nuclear: https://kreshuklab.github.io/go-nuclear/.

Additionally, we've updated the link to the data/models on the BioImage Archive: S-BIAD1026.

For citation purposes, the updated BibTeX entry for the associated paper is provided below:

@article{vijayan2024deep,
  title={A deep learning-based toolkit for 3D nuclei segmentation and quantitative analysis in cellular and tissue context},
  author={Vijayan, Athul and Mody, Tejasvinee Atul and Yu, Qin and Wolny, Adrian and Cerrone, Lorenzo and Strauss, Soeren and Tsiantis, Miltos and Smith, Richard S and Hamprecht, Fred A and Kreshuk, Anna and others},
  journal={Development},
  volume={151},
  number={14},
  year={2024},
  publisher={The Company of Biologists}
}