Added Contributing.md (Issue 49) (Asiatik#50)

CONTRIBUTING.md

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+# How to Contribute
+We'd love to accept your patches and contributions to this project. 
+We love your input! We want to make contributing to this project as easy and transparent as possible, whether it's:
+
+- Reporting a bug
+- Discussing the current state of the code
+- Submitting a fix
+- Proposing new features
+- Becoming a maintainer
+
+There are just a few small guidelines you need to follow.
+
+## We Develop with Github
+We use github to host code, to track issues and feature requests, as well as accept pull requests.
+
+## We Use [Github Flow](https://guides.github.com/introduction/flow/index.html), So All Code Changes Happen Through Pull Requests
+Pull requests are the best way to propose changes to the codebase (we use [Github Flow](https://guides.github.com/introduction/flow/index.html)). We actively welcome your pull requests:
+
+1. Fork the repo.
+2. Create your new feature branch from `master`.
+3. If you've added code that should be tested, we suggest to add tests.
+4. Ensure the test suite passes.
+5. Issue that pull request from your feature branch!
+
+## Any contributions you make will be under the MIT License
+In short, when you submit code changes, your submissions are understood to be under the same MIT License
+that covers the project. Feel free to contact the maintainers if that's a concern.
+
+## Report bugs using Github's issues
+We use GitHub issues to track public bugs. Report a bug by opening a new issue; it's that easy!
+
+## Code reviews
+
+All submissions require review. We
+use GitHub pull requests for this purpose. Consult
+[GitHub Help](https://help.github.com/articles/about-pull-requests/) for more
+information on using pull requests.
+
+## Contact Us
+
+You can contact us through glitter [here](https://gitter.im/asiatik-open)
+
+## Community Guidelines
+
+This project follows [Google's Open Source Community
+Guidelines](https://opensource.google.com/conduct/).
+