[DKP] Release Notes 2.2.3

[mwrightd2]

Jira Ticket

https://d2iq.atlassian.net/browse/D2IQ-93113

Description of changes being made

Release notes or Kon/Komm 2.2.3

Preview

You can preview the docs build using the following URL, adding the PR # where specified: http://docs-d2iq-com-pr-4636.s3-website-us-west-2.amazonaws.com/

Checklist

• [ ] Test all commands and procedures, if applicable.
• [ ] Update all links if you are moving a page.
• [ ] Add release date to Release Notes page in the following format: <Package> was released on <Day>, <Month> <Year> Example: Mesosphere® DC/OS™ 2.1.0 was released on 9, June 2020

See the contribution guidelines for more information.