Support for code of conduct

[hadley]

e.g. http://contributor-covenant.org/version/1/0/0/code_of_conduct.txt

use_conduct()
# * Creating CONDUCT.md
# * Adding CONDUCT.md to .Rbuildignore

[jmarca]

the link in the README.md should be caps case

s/conduct.md/CONDUCT.md/

[lock]

This old issue has been automatically locked. If you believe you have found a related problem, please file a new issue (with reprex) and link to this issue. https://reprex.tidyverse.org/