tandoor-recipes: missing commons-clause licensing terms

[mweinelt]

The license for tandoor-recipes fails to include the commons-clause license, which would make it unfree.

Beginning with version 0.10.0 the code in this repository is licensed under the GNU AGPL v3 license with a common clause selling exception. See LICENSE.md for details.

https://github.com/TandoorRecipes/recipes#license

Additional context

https://commonsclause.com/

Notify maintainers

@jvanbruegge

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[niklaskorz]

Quoting @ssddanbrown from TandoorRecipes/recipes#238 (comment):

When combined with the AGPLv3, the commons clause is essentially redundant because users can just remove all meaningful requirements/restrictions/limitations it adds as per section 7 of the AGPL (Emphasis mine):

All other non-permissive additional terms are considered "further restrictions" within the meaning of section 10. If the Program as you received it, or any part of it, contains a notice stating that it is governed by this License along with a term that is a further restriction, you may remove that term.