This PR contains the the following documentation changes for the native docker image:
in the docker/README.md: How to build, release and promote the native docker image.
in the tests/README.md: How to run system tests by bringing up kafka in the native mode.
added docker/native/README.md
added html changes for the kafka-site
added native docker image support in the docker compose files examples.
Testing:
Tested all the docker compose files with both the docker images - jvm and native
Tested the html changes locally with the kafka-site
Reviewers: Manikumar Reddy <manikumar.reddy@gmail.com>, Vedarth Sharma <vesharma@confluent.io>