Add a code of conduct and contributing file.

CODE_OF_CONDUCT.md

@@ -0,0 +1,3 @@
+# Code Of Conduct
+
+This add-on follows the [Mozilla Community Participation Guidelines](https://www.mozilla.org/en-US/about/governance/policies/participation/) for our code of conduct.

CONTRIBUTING.md

@@ -0,0 +1,35 @@
+# Contributing
+
+Everyone is welcome to contribute to containers. Reach out to team members if you have questions:
+
+- IRC: #containers on irc.mozilla.org
+- Email: containers@mozilla.com
+
+## Filing bugs
+
+If you find a bug with containers, please file a issue.
+
+Check first if the bug might already exist: https://github.com/mozilla/testpilot-containers/issues
+
+[Open an issue](https://github.com/mozilla/testpilot-containers/issues/new)
+
+1. Visit about:support
+2. Click "Copy raw data to clipboard" and paste into the bug. Alternatively copy the following sections into the issue:
+  - Application Basics
+  - Nightly Features (if you are in nightly)
+  - Extensions
+  - Experimental Features
+3. Include clear steps to reproduce the issue you have experienced.
+4. Include screenshots if possible.
+
+## Sending Pull Requests
+
+Patches should be submitted as pull requests. When submitting patches as PRs:
+
+- You agree to license your code under the project's open source license (MPL 2.0).
+- Base your branch off the current master (see below for an example workflow).
+- Add both your code and new tests if relevant.
+- Run npm test to make sure all tests still pass.
+- Please do not include merge commits in pull requests; include only commits with the new relevant code.
+
+See the main [README](./README.md) for information on prerequisites, installing, running and testing.

README.md

@@ -57,7 +57,6 @@ Check out the [Browser Toolbox](https://developer.mozilla.org/en-US/docs/Tools/B
 4. `npm install -g shield-study-cli`
 5. `shield run . -- --binary Nightly`
 
-
 ### Building .xpi
 
 To build a local testpilot-containers.xpi, use the plain [`jpm
@@ -79,6 +78,11 @@ add-on](https://addons.mozilla.org/en-US/developers/addon/containers-experiment/
 ### Testing
 TBD
 
-
 ### Distributing
 TBD
+
+### Links
+
+- [Licence](./LICENSE.txt)
+- [Contributing](./CONTRIBUTING.md)
+- [Code Of Conduct](./CODE_OF_CONDUCT.md)