Update page.rst

Does what - #2562 does.

docs/page.rst

@@ -1527,7 +1527,7 @@ In a nutshell, this is what you can do with PyMuPDF:
 
       PDF only: Display a page of another PDF as a **vector image** (otherwise similar to :meth:`Page.insert_image`). This is a multi-purpose method. For example, you can use it to
 
-      * create "n-up" versions of existing PDF files, combining several input pages into **one output page** (see example `4-up.py <https://github.com/pymupdf/PyMuPDF-Utilities/tree/master/examples/4-up.py>`_),
+      * create "n-up" versions of existing PDF files, combining several input pages into **one output page** (see example `combine.py <https://github.com/pymupdf/PyMuPDF-Utilities/blob/master/examples/combine-pages/combine.py>`_),
       * create "posterized" PDF files, i.e. every input page is split up in parts which each create a separate output page (see `posterize.py <https://github.com/pymupdf/PyMuPDF-Utilities/blob/master/examples/posterize-document/posterize.py>`_),
       * include PDF-based vector images like company logos, watermarks, etc., see `svg-logo.py <https://github.com/pymupdf/PyMuPDF-Utilities/tree/master/examples/svg-logo.py>`_, which puts an SVG-based logo on each page (requires additional packages to deal with SVG-to-PDF conversions).