Revise contributing documentation

Author: dolph

CONTRIBUTING.md

@@ -1,60 +1,14 @@
-## Contributing In General
+# Contributing
 
-Our project welcomes external contributions! If you have an itch, please
-feel free to scratch it.
+This is an open source project, and we appreciate your help!
 
-To contribute code or documentation, please submit a pull request to the [GitHub
-repository](https://github.com/IBM/pixiedust-traffic-analysis).
+We use the GitHub issue tracker to discuss new features and non-trivial bugs.
 
-A good way to familiarize yourself with the codebase and contribution process is
-to look for and tackle low-hanging fruit in the [issue
-tracker](https://github.com/IBM/pixiedust-traffic-analysis/issues). Before embarking on
-a more ambitious contribution, please quickly [get in touch](#communication)
-with us.
+In addition to the issue tracker, [#journeys on
+Slack](https://dwopen.slack.com) is the best way to get into contact with the
+project's maintainers.
 
-**We appreciate your effort, and want to avoid a situation where a contribution
-requires extensive rework (by you or by us), sits in the queue for a long time,
-or cannot be accepted at all!**
-
-### Proposing new features
-
-If you would like to implement a new feature, please [raise an
-issue](https://github.com/IBM/pixiedust-traffic-analysis/issues) before sending a pull
-request so the feature can be discussed. This is to avoid you spending your
-valuable time working on a feature that the project developers are not willing
-to accept into the code base.
-
-### Fixing bugs
-
-If you would like to fix a bug, please [raise an
-issue](https://github.com/IBM/pixiedust-traffic-analysis/issues) before sending a pull
-request so it can be discussed. If the fix is trivial or non controversial then
-this is not usually necessary.
-
-### Merge approval
-
-The project maintainers use LGTM (Looks Good To Me) in comments on the code
-review to indicate acceptance. A change requires LGTMs from two of the
-maintainers of each component affected.
-
-For more details, see the [MAINTAINERS](MAINTAINERS.md) page.
-
-## Communication
-
-Please feel free to connect with us:
-https://github.com/IBM/pixiedust-traffic-analysis/issues
-
-## Setup
-
-Please add any special setup instructions for your project to help the
-developer become productive quickly.
-
-## Testing
-
-Please provide information that helps the developer test any changes they
-make before submitting.
-
-## Coding style guidelines
-
-Beautiful code rocks! Please share any specific style guidelines you might
-have for your project.
+To contribute code, documentation, or tests, please submit a pull request to
+the GitHub repository. Generally, we expect two maintainers to review your pull
+request before it is approved for merging. For more details, see the
+[MAINTAINERS](MAINTAINERS.md) page.