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+# Contributing guidelines
+
+We’d love you to help us improve this project. To help us keep this collection
+high quality, we request that contributions adhere to the following guidelines.
+
+- **Provide a link to the application or project’s homepage**. Unless it’s
+  extremely popular, there’s a chance the maintainers don’t know about or use
+  the language, framework, editor, app, or project your change applies to.
+
+- **Provide links to documentation** supporting the change you’re making.
+  Current, canonical documentation mentioning the files being ignored is best.
+  If documentation isn’t available to support your change, do the best you can
+  to explain what the files being ignored are for.
+
+- **Explain why you’re making a change**. Even if it seems self-evident, please
+  take a sentence or two to tell us why your change or addition should happen.
+  It’s especially helpful to articulate why this change applies to *everyone*
+  who works with the applicable technology, rather than just you or your team.
+
+- **Please consider the scope of your change**. If your change specific to a
+  certain language or framework, then make sure the change is made to the
+  template for that language or framework, rather than to the template for an
+  editor, tool, or operating system.
+
+- **Please only modify *one template* per pull request**. This helps keep pull
+  requests and feedback focused on a specific project or technology.
+
+In general, the more you can do to help us understand the change you’re making,
+the more likely we’ll be to accept your contribution quickly.
+
+If a template is mostly a list of files installed by a particular version of
+some software (e.g. a PHP framework) then it's brittle and probably no more
+helpful than a simple `ls`. If it's not possible to curate a small set of
+useful rules, then the template might not be a good fit for this collection.
+
+Please also understand that we can’t list every tool that ever existed.
+Our aim is to curate a collection of the *most common and helpful* templates,
+not to make sure we cover every project possible. If we choose not to
+include your language, tool, or project, it’s not because it’s not awesome.