Correct the custom wiki sidebar instructions
What does this MR do?
This MR clarifies the instructions to create a custom wiki sidebar. The correct way to add customizations to the sidebar is not to create a file _sidebar, but to create a page _sidebar which then results in a file _sidebar.md created in the wiki repository.
Does this MR meet the acceptance criteria?
Conformity
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Changelog entry -
Documentation (if required) -
Code review guidelines -
Merge request performance guidelines -
Style guides -
Database guides -
Separation of EE specific content
Availability and Testing
- [-] Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
- [-] Tested in all supported browsers
- [-] Informed Infrastructure department of a default or new setting change, if applicable per definition of done