Contributing guidelines (#140)

* Create Pull Request Template

* added contributing guidelines

- includes a pull request template

* cleanup duped PR docs

* finish fix of duped PR template

* updated contributing guidelines per #140

* comma cleanup, needs tests info update

.github/CONTRIBUTING.md

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+# Ex-Mode Contributing Guidelines
+
+Current Maintainers:
+
+- [@jazzpi](https://github.com/jazzpi)
+- [@LongLiveCHIEF](https://github.com/LongLiveCHIEF)
+
+This project is accepting new maintainers. Interested parties should
+
+1. Open a new issue, titled: `New Maintainer Request`
+2. Assign the issue to [@lloeki](https://github.com/lloeki)
+3. The last line of your request should `/cc @jazzpi @LongLiveCHIEF`
+
+## Pull Requests
+
+- If the PR *fixes* or should result in the closure of any issues, use the `fixes #` or `closes #` syntax to ensure issue will
+close when your PR is merged
+- All pull-requests that fix a bug or add a new feature *must* have accompanying tests before they will be merged. If you want
+to speed up the merge of your PR, please contribute these tests
+ - *note*: if you submit a PR but are unsure how to write tests, please begin your PR title with `[needs tests]`
+- Please use the [pull request template](PULL_REQUEST_TEMPLATE.md) as a guide for submitting your PR.
+- Include a `/cc` for @LongLiveCHIEF and @jazzpi the current maintainers
+
+## Issues
+
+- Be aware of the responsibilities of `ex-mode` vs `vim-mode`
+- If you have identified a bug we would welcome any Pull Requests that either:
+ - Fix the issue
+ - Create failing tests to confirm the bug

.github/PULL_REQUEST_TEMPLATE.md

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+Fixes # .
+
+Changes Proposed in this Pull Request:
+-
+-
+-
+
+I have written tests for:
+
+- [ ] New features introduced
+- [ ] Bugs fixed
+- [ ] Neither (I'm just enhancing tests!)
+
+@jazzpi @LongLiveCHIEF