Administration guide: update content for devworkspace, in the master branch

[l0rd]

Is your task related to a problem? Please describe

Administration guide to document only instances with devworkspace.

Describe the solution you'd like

Administration guide: update content for features on instances with devworkspace, in the master branch.

Here is the current list of the admin guide articles with in bold the ones to update:

• architecutre-overview
  • architecture-overview [WONT FIX for 3.0]
• calculating-che-resource-requirements @ibuziuk docs: Administration guide - Calculating Che resource requirements che-docs#2270
• retrieving-che-logs
  • configuring-server-logging
  • collecting-logs-using-chectl @amisevsk docs: Update docs on collecting logs using chectl che-docs#2263
• monitoring-che @dkwon17 docs: update Monitoring Che docs che-docs#2279
• monitoring-the-dev-workspace-operator @dkwon17 fix: devworkspace operator metrics docs che-docs#2276
• caching-images-for-faster-workspace-start @ibuziuk docs: Administration guide: caching images for faster workspace start che-docs#2258
• managing-identities-and-authorizations
  • removing-user-data @ibuziuk docs: Administration guide: Removing user data che-docs#2278
  • Removing user data according to GDPR does not work with the DevWorkspaces #21330

[nickboldt]

Engineering ownership: controller team / Ilya + Angel

[pmkovar]

Cloned in Jira: https://issues.redhat.com/browse/RHDEVDOCS-3883

[ibuziuk]

Engineering ownership: controller team / Ilya + Angel

Each item now has ownership and a person assigned to it explicitly

[pmkovar]

Pairing writers with engineers:

• @themr0c x @l0rd
• @deerskindoll x @ibuziuk
• @max-cx x @dkwon17
• @Eva-Lotte x @amisevsk

[pmkovar]

Update to the assignments above:

@swatikarmarkar and @Eva-Lotte x @amisevsk

[pmkovar]

One more update to the assignments:

@Eva-Lotte x @ibuziuk

[ibuziuk]

All sub-tasks have been done and all PRs have been merged in master. Closing