To enable the precious permalink for each title

This option adds an anchor link containing the paragraph symbol ¶ or another custom symbol at the end of each headline. This is very convenient, to point to a specific section, retrieve its URL and share it with people interested in that specific section.

The documentation about it https://squidfunk.github.io/mkdocs-material/setup/extensions/python-markdown/?h=perma#+toc.permalink

This, for example, as seen on the Material website