ART notebook not rendered on GitHub

[ckadner]

When I last updated the notebook ART_model_robustness_check.ipynb I manually truncated the training log output, but I accidentally deleted one comma too many. As a result the notebook could not get rendered on GitHub.

Developer's Certificate of Origin 1.1

   By making a contribution to this project, I certify that:

   (a) The contribution was created in whole or in part by me and I
       have the right to submit it under the Apache License 2.0; or

   (b) The contribution is based upon previous work that, to the best
       of my knowledge, is covered under an appropriate open source
       license and I have the right under that license to submit that
       work with modifications, whether created in whole or in part
       by me, under the same open source license (unless I am
       permitted to submit under a different license), as indicated
       in the file; or

   (c) The contribution was provided directly to me by some other
       person who certified (a), (b) or (c) and I have not modified
       it.

   (d) I understand and agree that this project and the contribution
       are public and that a record of the contribution (including all
       personal information I submit with it, including my sign-off) is
       maintained indefinitely and may be redistributed consistent with
       this project or the open source license(s) involved.

[ckadner]

@nilmeier

[Tomcli]

Notebook still not rendered on GitHub. Another missing comma somewhere?

[ckadner]

@Tomcli -- nope, all commas there now. It's valid JSON again, but may still be too big for GitHub to render.

[Tomcli]

@ckadner Yeah, it works on my Jupyter Notebook. I'm not sure what's the issue with GitHub since I had seem much bigger notebook get rendered without issue. LGTM.

[ckadner]

@Tomcli -- thanks for review and merge!