Update Bundler Contributor Guidelines README

Hey team,

As part of an ongoing effort to revamp the docs, I've been working with @indirect to rewrite the contributor guidelines README. We wanted to streamline the way the information was laid out, and make it more explicit to potential contributors how they can contribute and what next steps they needed to take. We condensed everything down to three sections (a general guidelines section, contributor section, and a new, supporting Bundler section). Everything links out to existing documentation.

1 files changed, 16 insertions, 27 deletions

diff --git a/doc/contributing/README.md b/doc/contributing/README.md
index 55c742d2ae..4da5a55391 100644
--- a/doc/contributing/README.md
+++ b/doc/contributing/README.md
@@ -1,38 +1,27 @@
-# Contributing to Bundler
+# Bundler Contributor Guidelines
 
-Welcome to Bundler! We are so happy that you're here. We know joining a new open source project can be daunting, so here's a quick overview of what you can expect from this documentation.
+Thank you for your interest in making Bundler better! We welcome contributions from everyone. Dozens of contributors like you have submitted feature improvements, fixed bugs, and written new documentation. [Join the Bundler Slack community](http://slack.bundler.io/) to connect with the Bundler core team and other contributors like you.
 
-*Something missing?* Send us a [pull request](../development/PULL_REQUESTS.md)!
+Before submitting a contribution, please take a moment to read through the following guidelines:
 
-**Recommended first steps**
+* [Bundler Code of Conduct](https://github.com/bundler/bundler/blob/master/CODE_OF_CONDUCT.md) (By participating in Bundler, you agree to abide by the terms laid out in the CoC.)
+* [Development Setup Guidelines](https://github.com/bundler/bundler/blob/master/doc/development/SETUP.md)
+* [Issue Reporting Guidelines](https://github.com/bundler/bundler/blob/master/doc/contributing/ISSUES.md)
+* [Pull Request Guidelines](https://github.com/bundler/bundler/blob/master/doc/development/PULL_REQUESTS.md)
 
-- Join us in the Bundler slack! Generate an invite [here](http://slack.bundler.io/)
-- *If you're interested in helping with code:*
-  - Get a quick overview of our [development process](../development/README.md)
-  - [Setup your machine for development](../development/SETUP.md)
-  - Checkout [How you can help: your first contributions!](HOW_YOU_CAN_HELP.md) for a list of suggestions to get started
-- *If you're interested in helping with documentation:*
-  - Read up on [how documentation works for Bundler](../documentation/README.md)
-  - Learn about our [documentation vision](../documentation/VISION.md)
 
-You can start learning about Bundler by reading [the documentation](http://bundler.io). If you want, you can also read a (lengthy) explanation of [why Bundler exists and what it does](http://bundler.io/rationale.html).
+## Contributing to Bundler
 
-## [How you can help: your first contributions!](HOW_YOU_CAN_HELP.md)
+Now that you’ve looked over our contribution guidelines, here are the different ways you can start contributing to the Bundler project:
 
-A detailed overview of how to get started contributing to Bundler, including a long list of suggestions for your first project.
+* [First contribution suggestions](https://github.com/bundler/bundler/blob/master/doc/contributing/HOW_YOU_CAN_HELP.md)
+* [Adding new features](https://github.com/bundler/bundler/blob/master/doc/development/NEW_FEATURES.md)
+* [Triaging bugs](https://github.com/bundler/bundler/blob/master/doc/contributing/BUG_TRIAGE.md)
+* [Writing documentation](https://github.com/bundler/bundler/blob/master/doc/documentation/WRITING.md)
+* [Community engagement](https://github.com/bundler/bundler/blob/master/doc/contributing/COMMUNITY.md)
 
-## [Bug triage](BUG_TRIAGE.md)
 
-Want to take a stab at processing issues? Start here.
+## Supporting Bundler
 
-## [Getting help](GETTING_HELP.md)
+[Ruby Together](https://rubytogether.org/) pays some Bundler maintainers for their work, funded directly by the Ruby community. If you’d like to support Bundler with a financial contribution, [become an individual sponsor](https://rubytogether.org/developers#plans). We also welcome financial [contributions from companies](https://rubytogether.org/companies#plans), too! (You can also support us through [Open Collective](https://opencollective.com/rubytogether).)
 
-How to get in touch with folks who can help when you're stuck. Don't worry! This happens to all of us. We're really nice, we promise.
-
-## [Filing issues](ISSUES.md)
-
-We see a lot of issues in the Bundler repo! Use this guide to file informative, actionable issues.
-
-## [Community](COMMUNITY.md)
-
-Learn more about our goals for the Bundler community and the ways you can help us build better together.