add contribution guide to README

CONTRIBUTION.md

@@ -0,0 +1,30 @@
+## Contributions
+
+This project is open for contributions. All contributions must adhere to the [Airbnb Javascript](http://airbnb.io/javascript/) style guide.
+
+#### To get started:
+1. Create a feature branch for any issue you want to resolve
+
+2. Implement the said feature
+
+4. Commit your changes
+> Your commit message(s) should follow the format below. It should comprise of:
+> *  A header: summarizes what feature was implemented
+>* A body: gives a concise description of said feature
+> ```
+> feat(kafka): implement exactly one time delivery
+> - ensure every event published to kafka is delivered exactly once
+> - implement error handling for failed delivery
+
+4. Raise a pull request to the `develop` branch
+> Pull requests should also follow the format below:
+> ```
+> - What does this PR do?
+> - Description of Task to be completed?
+> - How should this be manually tested?
+> - Any background context you want to provide?
+> - Screenshots (if appropriate)
+> - Questions
+
+5. Once your pull request has been reviewed and any possible feedback addressed, your work will be merged.
+

README.md

@@ -1,5 +1,5 @@
 # book-gallery-api
-A simple authentication API for the books gallery app
+A simple authentication API for the [books gallery app](https://github.com/she-code-africa/WOSCA-book-gallery)
 
 ## Core Technologies
 1. NodeJS/Express
@@ -42,4 +42,7 @@ A simple authentication API for the books gallery app
 2. Install all dependencies: 
     ```
       npm run start:dev
-    ```
+    ```
+
+### Contributing
+Refer to the contribution guidelines for this project [here](CONTRIBUTION.md)