docs(contrib): add CONTRIBUTING.md

CONTRIBUTING.md

@@ -0,0 +1,38 @@
+# Contributing
+
+You are welcome to submit any bugs, issues and feature requests on this repository.
+
+## Pull Request Process
+
+1. Update the README.md with details of changes to the interface.
+
+2. Ensure that each of the commit messages are in the following style:
+
+   Format: `<type>(<scope>): <subject>`
+
+   Type:
+
+   - `feat`: (new feature for the user, not a new feature for build script)
+   - `fix`: (bug fix for the user, not a fix to a build script)
+   - `docs`: (changes to the documentation)
+   - `style`: (formatting, missing semi colons, etc; no production code change)
+   - `refactor`: (refactoring production code, eg. renaming a variable)
+   - `test`: (adding missing tests, refactoring tests; no production code change)
+   - `chore`: (updating grunt tasks etc; no production code change)
+   - `perf`: (performance improvements)
+
+   **Example**
+
+   ```
+   feat(build): deterministic compile option
+   ^--^ ^---^   ^--------------------------^
+   |    |       |
+   |    |       +-> Summary in present tense.
+   |    |
+   |    |
+   |    +-------> Scope of the change.
+   |
+   +-------> Type: chore, docs, feat, fix, perf, refactor, style, or test.
+   ```
+
+   [Reference](https://gist.github.com/joshbuchea/6f47e86d2510bce28f8e7f42ae84c716)