Add a contributing section in the readme to attract more pull requests.

CONTRIBUTING.md

@@ -0,0 +1,42 @@
+# Contributing to Spina
+
+First of all, you're awesome! Thanks for taking the time to contribute to `Spina`.
+
+There's a bunch of ways to help, and we welcome any and all of them:
+
+1. Opening issues
+2. Commenting on open issues
+3. Sending PRs
+4. Testing PRs
+5. Writing tests
+6. Writing documentation
+
+We always welcome code contributions, be it fixing an issue or adding new features.
+
+The general workflow follows these steps:
+
+- Open an issue / Find an issue / Suggest a feature via our GitHub Issues page
+- Discuss the issue/feature with our team of developers and community members
+- Take ownership of the issue/feature
+- Fork the project
+- Create a feature branch and begin work
+- Sync your work with the main branch from time to time
+- Open PR and iterate
+- Accepted and Merged!
+
+In shell commands, that will look something like:
+
+```sh
+# Fork the repository
+$ git clone https://github.com/your_username/Spina.git
+$ cd Spina
+$ git checkout -b feature/feature_name
+# Code
+# Run tests
+$ git add .
+$ git commit -m "Adding posts support."
+$ git push
+# Open PR from your feature branch to master
+```
+
+Thank you.

README.md

@@ -179,6 +179,10 @@ The views for these templates are stored in `app/views/default/pages`.
 
 You can define custom pages for your theme that will be generated when bootstrapping your website. You can define whether or not they're deletable. By default Spina creates a custom page named Homepage which is not deletable.
 
+# Contributing
+
+Check our [Contributing Guide](CONTRIBUTING.md) for instructions on how to help the project.
+
 # License
 
 Spina is released under the [MIT license](LICENSE.md).