[documentation] Add minor fixes to the OOM kill check documentation. (#7500)
[documentation] Add minor fixes to the OOM kill check documentation. (#7500)

* [documentation] Add minor fixes to the OOM kill check documentation.

- Correct name of system-probe.yaml
- Fix indentation issue in the system-probe.yaml code snippet, which
  resulted from the snippet being embedded in a Markdown list.

* Respond to PR feedback
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