Updating loki documentation to reflect architecture updates

General MR

Summary

Very lightweight MR to update Loki documentation regarding changes mentioned in #1411 (closed)

Only required moving read/write to root of values block and the removal of the global config values that are no longer present.

Issues

Closes #1411 (closed)

changed milestone to %1.54.0

added kinddocs loki statusreview labels

assigned to @micah.nagel and @ryan.j.garcia

assigned to @rob.ferguson

approved this merge request

merged

mentioned in commit ab101074