* markdown numbered lists: no need to manually maitain the numbers

* add instructions to update the collection version roughly following
  Ansible collection maintenance guidelines
  (https://docs.ansible.com/ansible/latest/community/collection_contributors/collection_release_with_branches.html)

* Distinguish major from minor releases in the release process

* Bump current galaxy.yml version to the next release

Signed-off-by: Fish-pro <zechun.chen@daocloud.io>

If opening https://groups.google.com/g/kubernetes-dev we can see the
following message:

  As of January 2, 2022, this group will be sunset in favor of dev@kubernetes.io.

So this replaces kubernetes-dev@googlegroups.com with the new one.

In addition, this adds actual steps to know how to create container images easily.

This updates RELEASE.md file to understand the release process
easily based on hands-on experience.

Fix http link to https link for security

Signed-off-by: Nguyen Hai Truong <truongnh@vn.fujitsu.com>

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>