Create CONTRIBUTING.md

CONTRIBUTING.md

@@ -0,0 +1,31 @@
+# Contributing
+
+First off, thank you so much for taking the time to contribute. All contributions are more than welcome!
+
+## How can I contribute?
+
+If you have an awesome new feature that you want to implement or you found a bug that you would like to fix, here are some instructions to guide you through the process:
+
+- **Create an issue** to explain and discuss the details
+- **Fork the repo**
+- **Clone the repo** and set it up (check out the [getting started](https://github.com/hagopj13/node-express-mongoose-boilerplate#getting-started) section in README.md) 
+- **Implement** the necessary changes
+- **Create tests** to keep the code coverage high
+- **Send a pull request**
+
+## Guidelines
+
+### Git commit messages
+
+- Limit the subject line to 72 characters
+- Capitalize the first letter of the subject line
+- Use the present tense ("Add feature" instead of "Added feature")
+- Separate the subject from the body with a blank line
+- Reference issues and pull requests in the body
+
+### Coding style guide
+
+We are using ESLint to ensure a consistent code style in the project, based on [Airbnb's JS style guide](https://github.com/airbnb/javascript/tree/master/packages/eslint-config-airbnb-base).
+Some other ESLint plugins are also being used, such as the [Prettier](https://github.com/prettier/eslint-plugin-prettier) and [Jest](https://github.com/jest-community/eslint-plugin-jest) plugins.
+
+Please make sure that the code you are pushing conforms to the style guides mentioned above.