feat: add CONTRIBUTING.md

CONTRIBUTING.md

@@ -0,0 +1,35 @@
+# Contributing
+
+First off, thanks for contributing to **antimeridian**!
+We appreciate it.
+
+## Reporting a bug
+
+1. Go to <https://github.com/gadomski/antimeridian/issues/new>
+2. Create a new issue.
+   Please provide as much information as you can about the problem, including your system, the source file, and any error messages.
+
+## Requesting a feature
+
+1. Go to <https://github.com/gadomski/antimeridian/issues/new>
+2. Create a new issue that describes the feature that you'd like to see, with as much detail as possible.
+
+We will do our best to review and provide feedback on any feature requests, but know that it might take a while.
+
+## Fixing or adding something
+
+1. Hack away (see the [Developing](./README.md#developing) section of the README for how to get started).
+2. Fork this repo to your own account.
+3. Push your branch to your repo.
+4. Open a pull request (PR) against <https://github.com/gadomski/antimeridian>.
+
+We'll do our best to review your PR in a timely fashion.
+Here's some things to include your PR to make our lives easier:
+
+- A good description of what you're adding or fixing
+- Tests to demonstrate the bug you're fixing, or to exercise the feature you're adding
+- Documentation about the new feature, if applicable
+- A [CHANGELOG](./CHANGELOG.md) entry
+- Well-organized git history, where each commit is one self-contained set of work
+
+Don't bother with bumping the version number, we'll do that ourselves.

README.md

@@ -70,7 +70,7 @@ make -C docs html
 
 ## Contributing
 
-Github [issues](https://github.com/gadomski/antimeridian/issues) and [pull requests](https://github.com/gadomski/antimeridian/pulls), please and thank you!
+See [CONTRIBUTING.md](./CONTRIBUTING.md).
 
 ## License