Update C8/CS8 references

• Added more detail to the generic CentOS page
• Removed references to CentOS Linux 8
• Corrected content for CS8 (step-by-step, etc)
• Refactored slightly the menu system for SLC

added 4 commits

• ecd7aa05 - remove C8 from docs/install
• 9ec0bd6c - remove C8 from locmap
• 21268b72 - reword singleuser
• 304b5680 - update stepbystep, removing C8 referenes

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added 1 commit

• e7edc548 - Add/update CS8 step-by-step docs

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added 2 commits

• 9283ffec - Add/update CS8 step-by-step docs
• ff9c1458 - Remove reference to C8 in a few random places

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added 1 commit

• da97524b - add details on how to manually add the CERN repo to step-by-step

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added 1 commit

• 650c8a72 - formatting

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• 24f3862c - formatting

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• 31881f3a - test

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• e1362bdb - extra formatting
• 75ae7bf0 - stuff

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• 39886b02 - formatting dog

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• 06b25eec - add details on how to manually add the CERN repo to step-by-step

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• b88ca5d5 - deprecate doc wts

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marked this merge request as ready

changed title from WIP: Doczilla to Update C8/CS8 references

changed the description

merged

mentioned in commit a8784083