Adding CoC, change funding link

CODE_OF_CONDUCT.md

@@ -0,0 +1,31 @@
+# Code of Conduct
+
+We value the participation of every member in our community and
+want to ensure that every contributor has an enjoyable experience.
+Accordingly, those who participate in the GRASS project are expected
+to show respect and courtesy to other community members at all times.
+
+GRASS uses the [NumFOCUS Code of Conduct (CoC)](https://numfocus.org/code-of-conduct).
+
+## The Short Version
+
+Be kind to others. Do not insult or put down others. Behave professionally.
+Remember that harassment and sexist, racist, or exclusionary jokes
+are not appropriate.
+
+All communication should be appropriate for a professional audience
+including people of many different backgrounds. Sexual language
+and imagery is not appropriate.
+
+GRASS and NumFOCUS are dedicated to providing a harassment-free community for everyone,
+regardless of gender, sexual orientation, gender identity and expression,
+disability, physical appearance, body size, race, or religion.
+We do not tolerate harassment of community members in any form.
+
+Thank you for helping make this a welcoming, friendly community for all.
+
+## Reporting
+
+If you feel that the Code of Conduct has been violated,
+submit a report directly to the NumFOCUS Code of Conduct Working Group by using
+[NumFOCUS Code of Conduct Reporting Form](https://numfocus.typeform.com/to/ynjGdT).

CONTRIBUTING.md

@@ -169,5 +169,7 @@ Once you sumbmit a PR, the CI pipeline will build your
 tutorial, so you and a reviewer can check if everything is ok.
 When a reviewer approves, your PR will be merged soon.
 
+Please note that maintainers may make minor edits to improve clarity, consistency, or visual style.
+
 ---
 Thanks for helping us build better educational resources for the GRASS community!

FUNDING.yml

@@ -0,0 +1,2 @@
+---
+custom: ['https://numfocus.org/donate-to-grass']

README.md

@@ -18,6 +18,9 @@ written for OSGeo/grass repository, so just adjust it for this repository.
 
 See [CONTRIBUTING.md](CONTRIBUTING.md) for more details.
 
+Please note that all contributors are expected to follow the [Code of Conduct](CODE_OF_CONDUCT.md)
+to ensure a respectful and inclusive environment.
+
 ## License
 
 The content in this repository is dual-licensed under the

_quarto.yml

@@ -28,9 +28,6 @@ website:
     # We do this for consistency with the rest of the sites.
     # https://github.com/quarto-ext/fontawesome/issues/6
     right:
-      - icon: opencollective
-        href: https://opencollective.com/grass/contribute
-        aria-label: GRASS on Open Collective
       - text: "{{< fa brands github >}}"
         href: https://github.com/OSGeo/grass
         aria-label: GRASS on GitHub

_variables.yml

@@ -1,7 +1,7 @@
 grass:
   name: GRASS
   website: https://grass.osgeo.org
-  support: https://opencollective.com/grass/contribute
+  support: https://numfocus.org/donate-to-grass
   description: Bringing advanced geospatial technologies to the world
   founded: 1984
   docs: