Mutating Web Hooks and Automatically Injecting Linkerd:

### What is the purpose of the post?

The purpose of this post is to explain how the Linkerd Auto-Inject functionality works and why we structured it this way in order to drive familiarity with the feature and help users adopt it.

### What should it talk about?

The problems that mutating webhooks / auto-inject solves, why it is such a big problem in making Kubernetes usable, how we solved the problem and why we did it the way we did, and what this means for Linkerd users.

### Who is the target audience?

* [X] Architect
* [X] SRE
* [X] Developers

### Are there any assets?
Yes! They are already created in the documentation.

### What are the dependencies?
None

### Relevant Examples / References

https://linkerd.io/2/proxy-injection/