Update generic links when renaming chapters via update_markdown_chapter_references

If there is a link to another page, which is not the bottom previous/next, it needs to be updated when chapters are renamed.

Look for the script or function named 'update_markdown_chapter_references' in the repository. Examine how it currently updates previous/next links and identify where generic cross-page links are handled. Test by renaming a chapter and checking if any internal links break.

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