Description of problem:

When reviewing the description of the API `lokistack.spec.storage.schemas` says:

$ oc explain lokistack.spec.storage.schemas
GROUP:      loki.grafana.com
KIND:       LokiStack
VERSION:    v1FIELD: schemas <[]Object>DESCRIPTION:
    Schemas for reading and writing logs.
    ObjectStorageSchema defines the requirements needed to configure a new
    storage schema.
    
FIELDS:
  effectiveDate    <string> -required-
    EffectiveDate is the date in UTC that the schema will be applied on.
    To ensure readibility of logs, this date should be before the current
    date in UTC.

This is not totally correct, exactly the phrase `date should be before the current date` . As it's explained in the "upstream" documentation the field `for a new install, this must be a date in the past, use a recent date. Format is YYYY-MM-DD.`, but if it's for changing the schema,  then: `Always set the from date in the new schema to a date in the future.`

Version-Release number of selected component (if applicable):

LokiStack Operator 5.7, 5.8 and 5.9

Actual results:

Expected results:

The description of `lokistack.spec.storage.schemas` explains better in what situations the date must be in the past and in what situations the date must be in the future.

Additional info: