Section to update: Optional: Configuring the RAID

Update first note. I have made some changes to the original text (Slack) based on the Dell documentation. Consider changing numbers to bullets because this is not a procedure.

Current text: "1. OpenShift Container Platform supports hardware RAID for baseboard management controllers (BMCs) using the iRMC protocol only. OpenShift Container Platform 4.14 does not support software RAID."

New text: "OpenShift Container Platform supports hardware RAID levels 0, 1, and 5 for baseboard management controllers (BMCs) by using the Redfish API with the Integrated Dell Remote Access Controller (iDRAC). The iDRAC firmware version must be 6.10.30.20, or later, and the Dell server must have a supported RAID controller. OpenShift Container Platform 4.15 does not support software RAID."