Add infrastructure

CODE_OF_CONDUCT.md

@@ -0,0 +1,25 @@
+# Contributor Code of Conduct
+
+As contributors and maintainers of this project, we pledge to respect all people who 
+contribute through reporting issues, posting feature requests, updating documentation,
+submitting pull requests or patches, and other activities.
+
+We are committed to making participation in this project a harassment-free experience for
+everyone, regardless of level of experience, gender, gender identity and expression,
+sexual orientation, disability, personal appearance, body size, race, ethnicity, age, or religion.
+
+Examples of unacceptable behavior by participants include the use of sexual language or
+imagery, derogatory comments or personal attacks, trolling, public or private harassment,
+insults, or other unprofessional conduct.
+
+Project maintainers have the right and responsibility to remove, edit, or reject comments,
+commits, code, wiki edits, issues, and other contributions that are not aligned to this 
+Code of Conduct. Project maintainers who do not follow the Code of Conduct may be removed 
+from the project team.
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by 
+opening an issue or contacting one or more of the project maintainers.
+
+This Code of Conduct is adapted from the Contributor Covenant 
+(https://www.contributor-covenant.org), version 1.0.0, available at 
+https://contributor-covenant.org/version/1/0/0/.

README.Rmd

@@ -60,3 +60,8 @@ ggplot(iris, aes(Petal.Length, Petal.Width, colour = Species)) +
   geom_point() +
   facet_zoom(x = Species == "versicolor")
 ```
+
+## Code of Conduct
+Please note that the 'ggforce' project is released with a
+[Contributor Code of Conduct](CODE_OF_CONDUCT.md).
+By contributing to this project, you agree to abide by its terms.

README.md

@@ -58,3 +58,9 @@ ggplot(iris, aes(Petal.Length, Petal.Width, colour = Species)) +
 ```
 
 <img src="man/figures/README-example-1.png" width="100%" />
+
+## Code of Conduct
+
+Please note that the ‘ggforce’ project is released with a [Contributor
+Code of Conduct](CODE_OF_CONDUCT.md). By contributing to this project,
+you agree to abide by its terms.