fix(docstrings): escape chars in sample ini files to allow code introspection

[Guts]

Spotted by migration script to PyQt6 https://github.com/qgis/QGIS/wiki/Plugin-migration-to-be-compatible-with-Qt5-and-Qt6/

[jmkerloch]

LGTM 🚀

[kannes]

Not a fan of this one! Those examples should be verbatim.

What exactly did they break?

[Guts]

Okay sorry for the quick review & merge.

If we want to include examples in docstrings, I recommend to use the propre Sphinx syntax. Something like:

def foo():
    """summary.



    :example:

      .. highlight:: python
      .. code-block:: python

        import sys
        ...
    """

[kannes]

That would be super fancy and make sense especially when the documentation website is there. 👍

For now, would it be OK with you if we simply set those docstrings to raw strings (r""")? That makes pyqt5_to_pyqt6.py run without issues here.

[kannes]

I made a new ticket for this so that we can forget about it for now :)

-> #56