Create CONTRIBUTING.md

Author: cseas

CONTRIBUTING.md

@@ -0,0 +1,38 @@
+# How to Contribute
+
+We'd love to accept your patches and contributions to this project. There are
+just a few small guidelines you need to follow.
+
+## Code reviews
+
+All submissions, including submissions by project members, 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.
+
+## Steps to send a Pull Request
+1. Fork this repository to your GitHub account.
+2. Clone your fork to your local system using git.
+```shell
+git clone URLofYourRepository
+```
+3. Add your changes.
+4. Push local changes to your GitHub repository.
+```shell
+git add --all
+git commit -m "Short description of changes in this commit"
+git push origin master
+```
+5. Go to your GitHub repository. You'll see it has your changes and is some commits ahead of the original repository.
+6. If it is some commits behind, update your fork:
+```shell
+git fetch upstream
+git checkout master
+git merge upstream/master
+```
+    Push the updated changes to your GitHub repository:
+```shell
+git push origin master
+```
+7. Go to your GitHub fork, which is some commits aheads of the original. Press `Compare` to review the changes.
+8. Describe the changes you want to push and send a `Pull Request`.
+9. Your changes will be added to the original repository once your Pull Request is reviewed and accepted.