chore(maintenance): add project guides (bcoe#36)

- issue template
- PR template
- contributing guide
- maintainers guide

closes bcoe#35

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,18 @@
+<!--
+Thank you for reporting an issue.
+
+This issue tracker is for bugs and issues found within c8.
+
+Please fill in as much of the template below as you're able.
+
+Version: output of `node -v`
+Platform: output of `uname -a` (UNIX), or version and 32 or 64-bit (Windows)
+
+If possible, please provide code that demonstrates the problem, keeping it as
+simple and free of external dependencies as you are able.
+-->
+
+* **Version**:
+* **Platform**:
+
+<!-- Enter your issue details below this comment. -->

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,15 @@
+<!--
+Thank you for your pull request. Please provide a description above and review
+the requirements below.
+
+Bug fixes and new features should include tests and possibly benchmarks.
+
+Contributors guide: https://github.com/bcoe/c8/blob/master/CONTRIBUTING.md
+-->
+
+##### Checklist
+<!-- Remove items that do not apply. For completed items, change [ ] to [x]. -->
+- [ ] `npm test`, tests passing
+- [ ] `npm run test:snap` (to update the snapshot)
+- [ ] tests and/or benchmarks are included
+- [ ] documentation is changed or added

CONTRIBUTING.md

@@ -0,0 +1,53 @@
+# Contributing to `c8`
+
+The `c8` project welcomes all contributions from anyone willing to work in good faith with other contributors and the community. No contribution is too small and all contributions are valued.
+
+## Issues
+
+- You can open [issues here](https://github.com/bcoe/c8/issues), please follow the template guide.
+- You can join the `node-tooling/c8` channel, [follow this link](https://devtoolscommunity.herokuapp.com/) to request for an invite.
+
+## Pull Requests
+
+Pull Requests are the way concrete changes are made to the code, documentation, dependencies, and tools contained in the `c8` repository.
+
+### Setting up your local environment
+
+1. Make sure you have installed the latest version of Node.js
+1. Fork this project on Github and clone your fork locally:
+  ```
+  $ git clone [email protected]:username/c8.git
+  $ cd c8
+  $ git remote add upstream https://github.com/bcoe/c8.git
+  $ git fetch upstream
+  ```
+1. Create local branches to work within. These should also be created directly off of the master branch:
+  ```
+  $ git checkout -b my-branch -t upstream/master
+  ```
+1. Make your changes
+1. Run tests to make sure all is okay (everything should pass except snapshot):
+  ```
+  $ npm test
+  ```
+1. Now update the snapshot
+  ```
+  $ npm run test:snap
+  ```
+2. If all is passing, commit your changes.
+3. As a best practice, once you have committed your changes, it is a good idea to use git rebase (not git merge) to synchronize your work with the main repository:
+  ```
+  $ git fetch upstream
+  $ git rebase upstream/master
+  ```
+1. Run tests again to make sure all is okay
+1. Push:
+  ```
+  $ npm test
+  ```
+1. Open the pull request, see details in the template.
+1. Make any necessary changes after review.
+
+## Note
+
+This guide is adapted from the [Node.js project](https://github.com/nodejs/node/blob/master/doc/guides/contributing/pull-requests.md#dependencies), check it out for more details.

MAINTAINERS_GUIDE.md

@@ -0,0 +1,8 @@
+# `c8` Maintainers Guide
+
+- Label the issues appropriately, see the list of labels and their description [here](https://github.com/bcoe/c8/labels)
+- Be welcoming to first-time contributors, identified by the GitHub `first-time contributor` badge.
+- At least 1 - 2 _collaborators_ must approve a pull request before the pull request lands.
+- PRs with commits that don't follow the [conventional commits standard](https://www.conventionalcommits.org) should be re-written when merging (squash and merge).
+- Use Github's _squash and merge_ when landing PRs.
+- CI must pass before landing PRs.

README.md

@@ -32,4 +32,8 @@ A fully functional code coverage solution using only V8's native coverage
 features and minimal user-land modules, so that we fit these constraints:
 
 * No parsing of JavaScript code.
-* No mucking with Node.js' runtime environment.
+* No mucking with Node.js' runtime environment.
+
+## Contributing to `c8`
+
+See the [contributing guide here](./CONTRIBUTING.md).