Updating CoreDNS version and readme

Fixed var naming issue in TaskDef, created script defaults.

Fixing EXIT code, and allow custom check path

Improving README readability

Benchmarks

Making the JSON more human friendly.

Removed repeated warning in README

More README work

Update README.md

Cleanup of README

Providing usage example, and upstream DNS as fallback in container

Updating README.md

Added ToC

Example output from the metrics system.

Fixed a logic error in healthcheck script.