Update index.rst

Author: JorjMcKie

docs/pymupdf4llm/index.rst

@@ -40,7 +40,7 @@ Functionality
 
 - Standard text and tables are detected, brought in the right reading sequence and then together converted to **GitHub**-compatible **Markdown** text. Tables in plain text output mode are rendered using the `tabulate <https://pypi.org/project/tabulate/>`_ package.
 
-- Header lines are identified via the font size and appropriately prefixed with one or more `#` tags. When using the package together with :ref:`PyMuPDF Layout <https://pypi.org/project/pymupdf-layout/>`_, titles, section headers and page headers and footers are detected.
+- Header lines are identified via the font size and appropriately prefixed with one or more `#` tags. When using the package together with :ref:`PyMuPDF Layout <pymupdf-layout>`, titles, section headers and page headers and footers are detected.
 
 - Bold, italic, mono-spaced text and code blocks are detected and formatted accordingly. Similar applies to ordered and unordered lists.