WD-11514 Modified "Rock" to "rock" and linted the /ceph/install.html

[immortalcodes]

Done

• Changed occurance of "ROCKs" to "rocks" in ceph/install.html

QA

• Check out this feature branch
• Run the site using the command ./run serve or dotrun
• View the site locally in your web browser at: http://0.0.0.0:8001/
  • Be sure to test on mobile, tablet and desktop screen sizes
• Also the copydoc for the change.
• Demo

Issue / Card

WD-11514

Help

QA steps - Commit guidelines

[webteam-app]

Demo

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