Rm explicit attribution info from README+site index.

Author: rossbar

README.md

@@ -122,14 +122,6 @@ author, if applicable.</b>
 For more information about GitHub and its workflow, you can see
 [this document](https://docs.github.com/en/github/collaborating-with-issues-and-pull-requests).
 
-### Attribution
-
- - The SVD tutorial is by [@melissawm][mwm]. The full tutorial is available
-   via the [tutorials page][np_tutorials] of the official NumPy documentation.
-
-[mwm]: https://github.com/melissawm
-[np_tutorials]: https://numpy.org/devdocs/user/tutorials_index.html
-
 ## Useful links and resources
 
 The following links may be useful:

site/index.md

@@ -33,15 +33,6 @@ content/tutorial-deep-learning-on-mnist
 content/tutorial-x-ray-image-processing
 ```
 
-### Attribution
-
- - The SVD tutorial is by [@melissawm][mwm]. The full tutorial is available
-   via the [tutorials page][np_tutorials] of the official NumPy documentation.
-
-[learn]: https://numpy.org/learn
-[mwm]: https://github.com/melissawm
-[np_tutorials]: https://numpy.org/devdocs/user/tutorials_index.html
-
 ## Contributing
 
 We very much welcome contributions! If you have an idea or proposal for a new
@@ -131,9 +122,6 @@ Remember to clear all outputs on your notebook before uploading it.
     <img src="_static/04-add_to_readme.gif" width=80% height=80%>
 </details>
 
-<b>Update the attribution section (below) to credit the original tutorial
-author, if applicable.</b>
-
 <details>
     <summary>
         <b>Create a <a href="https://docs.github.com/en/github/collaborating-with-issues-and-pull-requests/about-pull-requests">pull request.</a></b>