Document the image refresh cycle

[leochr]

Document: Open Liberty container images
http://openliberty.io/docs/latest/container-images.html

Please describe the problem you are having with the documentation. Is information missing, inaccurate, or unclear? Tell us about the context where you encountered the problem so we can understand how to address it.

Add the following prior to the sentence "For more information on the full list of supported Open Liberty container images, see ....":

After the initial release of the Liberty container images, they are refreshed regularly (every 1-2 weeks) to include fixes for the operating system (OS) and Java.

[ramkumar-k-9286]

Hi Leo @leochr

Suggested corrections are done.

Draft link:
https://docs-draft-openlibertyio.mqj6zf7jocq.us-south.codeengine.appdomain.cloud/docs/latest/container-images.html

Please add the Developer Reviewed label if you are satisfied with the changes.

Regards,
Ramkumar.

CC @dmuelle

[leochr]

@ramkumar-k-9286 Looks good. Thank you.