* Remove Docker references in kubernetes-concepts.md
* Remove Node Templete reference in downstream-cluster-configuration.md
* Add back About Docker section to K8s concepts page
* Update About Docker section
* Increase heap limit in deploy.yml
* Update .github/workflows/deploy.yml
Co-authored-by: Billy Tat <btat@suse.com>
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Co-authored-by: Billy Tat <btat@suse.com>