Remove broken link
Removes what appears to be a link to itself. I didn't find a better link, so removed it. The content is still there.
Also made some minor linting fixes.
What does this MR do?
Related issues
Relates to: https://gitlab.com/gitlab-org/gitlab-ce/issues/51696.
Author's checklist
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Apply the correct labels and milestone -
Crosslink the document from the higher-level index -
Crosslink the document from other subject-related docs -
Correctly apply the product badges and tiers -
Port the MR to EE (or backport from CE): always recommended, required when the ee-compat-check
job fails
Review checklist
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Your team's review (required) -
PM's review (recommended, but not a blocker) -
Technical writer's review (required) -
Merge the EE-MR first, CE-MR afterwards