Updated two URLs in deeplabcut-dnn.md

[star1327p]

Brief description of what is fixed or changed

Updated two URLs in deeplabcut-dnn.md.

1. DeepLabCut model zoo
   New link: https://deeplabcut.github.io/DeepLabCut/docs/ModelZoo.html
   Old link does not work: http://www.mousemotorlab.org/dlc-modelzoo

2. DeepLabCut paper in Summary section
   New link: https://static1.squarespace.com/static/57f6d51c9f74566f55ecf271/t/5eab5ff7999bf94756b27481/1588289532243/NathMathis2019.pdf
   Old link does not work: http://orga.cvss.cc/wp-content/uploads/2019/05/NathMathis2019.pdf

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[stefanv]

Thanks for the fixes! That link to the paper doesn't look super reliable. How about the bioarxiv version?

[star1327p]

@stefanv The bioxiv version is an older version in 2018.
https://www.biorxiv.org/content/10.1101/476531v1.full.pdf

The link I added is the latest version in 2019, which has the exact same abstract as the official Nature publication.
https://static1.squarespace.com/static/57f6d51c9f74566f55ecf271/t/5eab5ff7999bf94756b27481/1588289532243/NathMathis2019.pdf

https://www.nature.com/articles/s41596-019-0176-0
https://pubmed.ncbi.nlm.nih.gov/31227823/

[stefanv]

I guess I should have made my concern clearer: do we have reason to believe that that link is stable?

I mean, obviously an improvement on the current status, just checking to see if we can find an "official" link before we merge.

[star1327p]

Yes, I believe that squarespace link is stable. It's the closest thing I could find, because all the official versions require a paid subscription to access.

Also, someone else posted a 1955 article on squarespace from Harvard Business Review.
https://static.squarespace.com/static/52f06caee4b0c058f6084354/t/539070a1e4b0b4380bb48719/1401974945820/Levy_ProductandBrand.pdf

[stefanv]

@MMathisLab do you have any preference?

[MMathisLab]

Looks great, thanks for catching these changes! ❤️

[stefanv]

Thank you @star1327p