Add Contributing Guidelines

CONTRIBUTING.md

@@ -0,0 +1,11 @@
+# Contributing
+
+## Pull Requests
+
+Before submitting a [pull request](https://github.com/domainmod/domainmod/pulls), please contact the maintainers of the repository to discuss the change. As much as we appreciate you wanting to contribute, we don't want you to waste your time working on a change or new feature that won't get implemented (such as a feature that's already in progress).
+
+## Issues & Feature Requests
+
+If you've found a bug, spelling mistake, or any other issue that needs to be fixed, or you have a new feature request, please submit an [issue](https://github.com/domainmod/domainmod/issues).
+
+Before submitting a new issue, please search the archive to make sure that the issue hasn't already been addressed.

README.md

@@ -129,6 +129,10 @@ Code of Conduct
 ---------------
 Please see CODE_OF_CONDUCT.md for a detailed explanation of our code of conduct.
 
+Contributing
+------------
+Please see CONTRIBUTING.md for our contributing guidelines.
+
 Support
 -------
 For the DomainMOD documentation please visit <https://domainmod.org/docs/>, or access the /docs/ folder within your DomainMOD installation.