chore: add code of conduct

Author: Midnighter

.github/CODE_OF_CONDUCT.md

@@ -0,0 +1,76 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, sex characteristics, gender identity and
+expression, level of experience, education, socio-economic status, nationality,
+personal appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+  advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+  address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+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, or to ban temporarily or permanently any
+contributor for other behaviors that they deem inappropriate, threatening,
+offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at
+[[email protected]](mailto:[email protected]). All complaints will be
+reviewed and investigated and will result in a response that is deemed necessary
+and appropriate to the circumstances. The project team is obligated to maintain
+confidentiality with regard to the reporter of an incident.  Further details of
+specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor
+Covenant](https://www.contributor-covenant.org), version 1.4, available at
+https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+For answers to common questions about this code of conduct, see
+https://www.contributor-covenant.org/faq

README.rst

@@ -14,6 +14,10 @@ Package Dependency Information
    :target: https://www.apache.org/licenses/LICENSE-2.0
    :alt: Apache Software License Version 2.0
 
+.. image:: https://img.shields.io/badge/Contributor%20Covenant-v1.4%20adopted-ff69b4.svg
+   :target: https://github.com/Midnighter/dependency-info/blob/master/.github/CODE_OF_CONDUCT.md
+   :alt: Code of Conduct
+
 .. image:: https://img.shields.io/travis/Midnighter/dependency-info/master.svg?label=Travis%20CI
    :target: https://travis-ci.org/Midnighter/dependency-info
    :alt: Travis CI
@@ -90,5 +94,6 @@ Example
 Copyright
 =========
 
-* Copyright (c) 2018, Moritz E. Beber.
-* Free software: `Apache Software License 2.0 <https://github.com/Midnighter/dependency-info/blob/master/LICENSE>`_
+* Copyright © 2018-2020, Moritz E. Beber.
+* Free software distributed under the `Apache Software License 2.0
+  <https://www.apache.org/licenses/LICENSE-2.0>`_.