Symlinked docs files

Some documentation in better to have next to the code, or in agent skills dir, instead of docs dir, where devs might not find it.
That's why some files are symlinked to the docs, so they can still be part of the human-readable md book
But some CI checks crash on symlinks (confirmed for prettier via nx)
That's why the symlinks are in a single folder → ignored in .prettierignore and .nxignore