Merge pull request #361 from carpentries/update-styles-2021-10-13-00-01

Under the following terms:

* **Attribution**---You must give appropriate credit (mentioning that

  your work is derived from work that is Copyright © Software

  Carpentry and, where practical, linking to

  http://software-carpentry.org/), provide a [link to the

  license][cc-by-human], and indicate if changes were made. You may do

  so in any reasonable manner, but not in any way that suggests the

  licensor endorses you or your use.

* **Attribution**---You must give appropriate credit by:

  - mentioning that your work is derived from work that is

    Copyright © Software Carpentry, Data Carpentry, Library Carpentry,

    or The Carpentries.

  - where practical, linking to the respective lesson program website

    (https://software-carpentry.org/, https://datacarpentry.org, https://librarycarpentry.org, or

    https://carpentries.org), provide a [link to the license][cc-by-human]

  - and indicate if changes were made. You may do so in any reasonable manner, but not in any way

    that suggests the licensor endorses you or your use.

**No additional restrictions**---You may not apply legal terms or

technological measures that legally restrict others from doing

## Trademark

"Software Carpentry" and "Data Carpentry" and their respective logos

are registered trademarks of [Community Initiatives][CI].

"The Carpentries", "Software Carpentry" and "Data Carpentry" and their respective logos are

registered trademarks of [Community Initiatives][CI].

[cc-by-human]: https://creativecommons.org/licenses/by/4.0/

[cc-by-legal]: https://creativecommons.org/licenses/by/4.0/legalcode

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