Document the minimum kernel version needed by the `oom_kill` check (#9635)
Document the minimum kernel version needed by the `oom_kill` check (#9635)

Co-authored-by: Celene Chang <da17b26c72170e8fbfe7bc23c5912c3087aabe1f@datadoghq.com>
DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core