Add CONTRIBUTING.md and CoC

CONTRIBUTING.md

@@ -0,0 +1,24 @@
+# Contributing Guidelines
+
+Welcome to Kubernetes. We are excited about the prospect of you joining our [community](https://github.com/kubernetes/community)! The Kubernetes community abides by the CNCF [code of conduct](code-of-conduct.md). Here is an excerpt:
+
+_As contributors and maintainers of this project, and in the interest of fostering an open and welcoming community, we pledge to respect all people who contribute through reporting issues, posting feature requests, updating documentation, submitting pull requests or patches, and other activities._
+
+## Getting Started
+
+The [Quick Start](https://github.com/kubernetes-sigs/mutating-trace-admission-controller#quick-start)
+section in the README has instructions on how to get started.
+We also have more documentation on how to get started contributing here:
+
+- [Contributor License Agreement](https://git.k8s.io/community/CLA.md) Kubernetes projects require that you sign a Contributor License Agreement (CLA) before we can accept your pull requests
+- [Kubernetes Contributor Guide](http://git.k8s.io/community/contributors/guide) - Main contributor documentation, or you can just jump directly to the [contributing section](http://git.k8s.io/community/contributors/guide#contributing)
+- [Contributor Cheat Sheet](https://git.k8s.io/community/contributors/guide/contributor-cheatsheet.md) - Common resources for existing developers
+
+## Mentorship
+
+- [Mentoring Initiatives](https://git.k8s.io/community/mentoring) - We have a diverse set of mentorship programs available that are always looking for volunteers!
+
+## Contact Information
+
+- [Slack channel](https://kubernetes.slack.com/messages/sig-instrumentation)
+- [Mailing list](https://groups.google.com/forum/#!forum/kubernetes-sig-instrumentation)

README.md

@@ -6,7 +6,6 @@
 
 The trace context injected with this mutating controller can be used by Kubernetes components to export traces associated with object lifecycles. For more information on this effort, [please refer to the official KEP](https://github.com/kubernetes/enhancements/pull/650).
 
-
 ## Quick start
 
 The structure of this mutating admission controller was informed by the [mutating admission webhook found here](https://github.com/morvencao/kube-mutating-webhook-tutorial). The basic idea is as follows:
@@ -25,4 +24,17 @@ There are example patches which can be used with `kustomize` to configure the de
 
 `kustomize build deploy/overlays/example | kubectl apply -f -`
 
-This can be used, for example, to set different sampling policies between production and staging clusters.
+This can be used, for example, to set different sampling policies between production and staging clusters.
+
+## Community, discussion, contribution, and support
+
+Learn how to engage with the Kubernetes community on the [community page](http://kubernetes.io/community/).
+
+You can reach the maintainers of this project at:
+
+- [Slack channel](https://kubernetes.slack.com/messages/sig-instrumentation)
+- [Mailing list](https://groups.google.com/forum/#!forum/kubernetes-sig-instrumentation)
+
+### Code of conduct
+
+Participation in the Kubernetes community is governed by the [Kubernetes Code of Conduct](code-of-conduct.md).

code-of-conduct.md

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+# Kubernetes Community Code of Conduct
+
+Please refer to our [Kubernetes Community Code of Conduct](https://git.k8s.io/community/code-of-conduct.md)