--- /dev/null
+<h2 id="contribute">How to contribute</h2>
+
+[![JavaScript Style Guide](https://cdn.rawgit.com/standard/standard/master/badge.svg)](https://github.com/standard/standard)<br>
+This repo use standard js style , please use it if you want to contribute <br>
+Take tasks from todo list, develop a new feature or fix a bug and do a pull request.<br>
+Another thing that you can do to contribute is to build something on top of ring-election and link ring-election to your project <br>
+
+Please ask your PR to be merged on <strong>master</strong> branch . <br>
+
+<strong>How to run tests</strong><br>
+
+<strong>Unit tests </strong> <br>
+
+```bash
+ npm run test
+```
+
+
+<strong> How to check if your new code is standard style </strong><br>
+```bash
+ npm run standard
+```
+<strong>How to lint your code</strong><br>
+```bash
+ npm run lint
+```
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