Fix broken syntax highlighting blocks
What does this MR do?
Fixes broken syntax highlighting blocks.
Changing the header title?
- [n/a] Is it completely necessary to change the title? Changing titles breaks deep linking. If yes, proceed further.
- [n/a] Move the old heading title to the bottom of the page.
- [n/a] Change the header tag to h5,
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Moving docs to a new location?
See the guidelines: https://docs.gitlab.com/ee/development/documentation/#changing-document-location.
- [n/a] Make sure the old link is not removed and has its contents replaced with a link to the new location.
- [n/a] Make sure internal links pointing to the document in question are not broken.
Closes #4485 (closed)