Add strawman contributing guidelines

The language about the license comes from what github shows at the
top of https://github.com/orcasound/orcasite/blob/main/LICENSE.
I don't like the use of this license, and Scott's discussion in
#181 proposes changing
it, which I would prefer.  However, in this PR I just document the
current state, which may dissuade some contributors from participating.
Changing the current state, if done, would be in a separate pull
request.

Signed-off-by: Dave Thaler <dthaler1968@gmail.com>

CONTRIBUTING.md

@@ -2,27 +2,115 @@
 
 Welcome to Orcasound! We're thrilled you're interested in contributing to the site.
 
-### Code of Conduct
+- [Code of Conduct](#code-of-conduct)
+- [Reporting Bugs](#bugs)
+- [Requesting New Features](#new-features)
+- [Contributing Code](#contributing-code)
+- [Contacting Us](#contacting-us)
+- [Resources](#resources)
+
+## Code of Conduct
 
 Please read and make sure you understand our [Code of Conduct](/CODE_OF_CONDUCT.md) before contributing to the project.
 
-### General workflow
-We recommend following these steps if you'd like to contribute to the repo.
+## Reporting Bugs
+
+First, **ensure the bug was not already reported** by searching on GitHub under
+[Issues](https://github.com/orcasound/orcasite/issues).
+
+If you found bug, you can help us by
+[submitting a GitHub Issue](https://github.com/orcasound/orcasite/issues/new).
+The best bug reports provide a detailed description of the issue and step-by-step instructions
+for reliably reproducing the issue.
+
+## Requesting New Features
+
+You can request a new feature by [submitting a GitHub Issue](https://github.com/orcasound/orcasite/issues/new).
+
+If you would like to implement a new feature, please first
+[submit a GitHub Issue](https://github.com/orcasound/orcasite/issues/new) and
+communicate your proposal so that the community can review and provide feedback. Getting
+early feedback will help ensure your implementation work is accepted by the community.
+This will also allow us to better coordinate our efforts and minimize duplicated effort.
+
+## Contributing Code
+
+Orcasite is currently covered by the [GNU Affero General Public License v3.0](https://github.com/orcasound/orcasite/blob/main/LICENSE). Permissions of this strongest copyleft license are conditioned on making available
+complete source code of licensed works and modifications, which include larger works using a licensed
+work, under the same license.  Copyright and license notices must be preserved.  Contributors provide
+an express grant of patent rights.
+
+If you are willing to follow the conditions of this license, check out the following links
+to find an unassigned item to contribute to:
+
+- ["Good first issue" GitHub issues for first-timers](https://github.com/orcasound/orcasite/labels/good%20first%20issue)
+- ["Help wanted" GitHub issues](https://github.com/orcasound/orcasite/labels/help%20wanted)
+- [Project board](https://github.com/orgs/orcasound/projects/38/views/1)
+- [Figma](https://www.figma.com/design/41JuvNkXJhTUob8HMsJiNC/Orcasite%3A-design-updates?node-id=882-3971)
+- [Trello board with overview of features](https://trello.com/b/hRFh7Sc1/orcasite-development)
+- [Public roadmap](https://trello.com/b/wBg0qhss/orcasound-roadmap)
+
+Once you've chosen an issue and want to contribute code:
 
-0. Check out the [Trello board](https://trello.com/b/hRFh7Sc1/orcasite-development) for an overview of features being worked on.
-    - This [public roadmap](https://trello.com/b/wBg0qhss/orcasound-roadmap) has a higher level view.
 1. Fork the Orcasite repo.
 2. Develop on a [feature branch](https://www.atlassian.com/git/tutorials/comparing-workflows/feature-branch-workflow).
 3. Submit a PR (don't review your own)!
     - To maintain a consistent style, we recommend running [Prettier](https://github.com/prettier/prettier) on js, and `mix format` before submission.
 4. Once a PR is merged, we can throw it up onto the dev server to see how things look!
 
+### Submitting a Pull Request
+
+For all but the absolute simplest changes, first find an existing GitHub issue or
+[submit a new issue](https://github.com/orcasound/orcasite/issues/new) so that the
+community can review and provide feedback. Getting early feedback will help ensure your work
+is accepted by the community. This will also allow us to better coordinate our efforts and
+minimize duplicated effort.
+
+If you would like to contribute, first identify the scale of what you would like to contribute.
+If it is small (grammar/spelling or a bug fix) feel free to start working on a fix. If you are
+submitting a feature or substantial code contribution, please discuss it with the maintainers and
+ensure it follows the public roadmap. You might also read these two blogs posts on contributing
+code: [Open Source Contribution Etiquette](http://tirania.org/blog/archive/2010/Dec-31.html) by Miguel de Icaza and
+[Don't "Push" Your Pull Requests](https://www.igvita.com/2011/12/19/dont-push-your-pull-requests/) by Ilya Grigorik.
+All code submissions will be reviewed and tested, and only those that meet
+the bar for both quality and design/roadmap appropriateness will be merged into the source.
+
+For all pull requests the following rules apply:
+- The pull request description should describe the problem and solution, and reference the GitHub issue if one exists.
+- Existing tests should continue to pass.
+- Tests should ideally be included for every bug or feature that is completed.
+- Documentation should be included for every feature that is end-user visible.
+- Coding style should be consistent with the style used in other files of the same type in this repository.
+
+## Contacting Us
+
 ### Questions?
+
+We are happy to answer as best we can any question you have about Orcasite.
+There are multiple ways you can ask questions:
+
+- Using the [Zulip channel](https://orcasound.zulipchat.com/#narrow/stream/437031-orcasite)
+- Using [Github discussions](https://github.com/orcasound/orcasite/discussions)
+
+### Meetings
+
+We meet for one hour other Wednesday via Google Meet.  You can request a calendar invite or check the
+[Zulip channel](https://orcasound.zulipchat.com/#narrow/stream/437031-orcasite) for the latest meeting
+date and time information.
+
+- [Request a calendar invite](https://forms.gle/Tegj4x6qxWx7PSes5)
+- [Meeting link](https://meet.google.com/igp-gpdr-wwu)
+- [Meeting notes](https://docs.google.com/document/d/1zXngvGO5kdm24gqSTNfHleFifU6ldtbA4amGSXe5jpg/edit?tab=t.0#heading=h.qyef7i4h6hom)
+
+### Maintainers
+
 If you have any questions about parts of the architecture and site, these are contributors with context about various parts:
 
 - [Paul Cretu](https://github.com/paulcretu) - Orcanode, streaming backend, ffmpeg
 - [Skander Mzali](https://github.com/skanderm) - Elixir backend, JS/React frontend
 
+## Resources
+
 ### Learning resources
 If you're new to Elixir (or JS and React), that's no problem! Here are some resources for learning what they're about.