Add CONTRIBUTING.md

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CONTRIBUTING.md

@@ -0,0 +1,23 @@
+## Feedback
+
+We'd love the feedback from you. Please create [GitHub Issues](https://github.com/carousell/pickle/issues) for feature discussions, bug reports and anything you'd like us to know. Be sure to check out the [closed issues](https://github.com/carousell/pickle/issues?q=is:closed) before you open new ones.
+
+## Contributing
+
+1. Fork the repo.
+
+2. Create a local feature branch from the latest `master`, prefix it with **feature/** and use **hyphen-separated-words** to name your branch:
+
+  ```sh
+  git checkout -b feature/your-branch
+  ```
+
+3. Add your changes and push it to your fork
+
+4. Create a pull request
+
+## Dependencies
+
+CocoaPods is used to set up the example project. Follow the [instruction](https://guides.cocoapods.org/using/getting-started.html#installation) to install it before you set up the project by running `make bootstrap`.
+
+**Pickle** uses Ruby 2.3.4 and [Bundler](http://bundler.io/) to manage dependencies on Travis CI. It's not required locally. However if you have Ruby environment set up, additional tools are specified in the [Gemfile](https://github.com/carousell/pickle/blob/master/Gemfile).

README.md

@@ -118,7 +118,7 @@ Follow the [instructions](https://github.com/Carthage/Carthage#adding-frameworks
 github "carousell/pickle" ~> 1.0.0
 ```
 
-## Development
+## Example
 
 Install [CocoaPods](https://guides.cocoapods.org/using/getting-started.html#installation):
 
@@ -128,15 +128,19 @@ gem install cocoapods
 
 Set up the development pods:
 
-```shell
+```sh
 pod install --project-directory=Example && open Example/Pickle.xcworkspace
 ```
 
+## Contributing
+
+Thank you for being interested in contributing to this project. Check out the [CONTRIBUTING](https://github.com/carousell/pickle/blob/master/CONTRIBUTING.md) document for more info.
+
 ## About
 
 <a href="https://github.com/carousell/" target="_blank"><img src="https://avatars2.githubusercontent.com/u/3833591" width="100px" alt="Carousell" align="right"/></a>
 
-**Pickle** is created and maintained by [Carousell](https://carousell.com/). Help us improve this project! We'd love to hear your [feedback](https://github.com/carousell/pickle/issues).
+**Pickle** is created and maintained by [Carousell](https://carousell.com/). Help us improve this project! We'd love the [feedback](https://github.com/carousell/pickle/issues) from you.
 
 We're hiring! Find out more at <http://careers.carousell.com/>