guard the trademark evidence from casual disruption

source/index.rst

@@ -6,13 +6,21 @@ Python Packaging Authority
 The Python Packaging Authority (PyPA) is a working group that maintains many of
 the relevant projects in Python packaging.
 
+.. **** CAREFUL HERE ****
+..
+   This section is placed here strategically to please Trademark examiners.
+   The PSF holds a trademark for the PyPI logo, and this text/image act as
+   evidence for that trademark. If you want to change it, notify @vanl first.
+
 The software developed through the PyPA is used to package, share, and install
 Python software and to interact with indexes of downloadable Python software
 such as `PyPI <https://pypi.org>`_, the Python Package Index. Click the logo below to download pip, the most prominent software used to interact with PyPI.
 
 .. image:: https://pypi.org/static/images/logo-large.svg
    :target: https://pypi.org/project/pip/#files
 
+.. **** END CAREFUL HERE ****
+
 They host projects on `GitHub <https://github.com/pypa>`_ and
 `Bitbucket <https://bitbucket.org/pypa>`_, and discuss issues in `the
 Packaging category on discuss.python.org