0.6.0: sphinx warnings

[kloczek]

Looks like sphinx on rendering documentation shows some warnings

+ /usr/bin/sphinx-build -n -T -b man doc build/sphinx/man
Running Sphinx v4.5.0
making output directory... done
WARNING: html_static_path entry '_static' does not exist
loading intersphinx inventory from https://docs.python.org/3/objects.inv...
building [mo]: targets for 0 po files that are out of date
building [man]: all manpages
updating environment: [new config] 6 added, 0 changed, 0 removed
reading sources... [100%] tempdir
looking for now-outdated files... none found
pickling environment... done
checking consistency... done
writing... python-testpath.3 { fsasserts commands env tempdir history } /home/tkloczko/rpmbuild/BUILD/testpath-0.6.0/doc/commands.rst:11: WARNING: 'envvar' reference target not found: PATH
/home/tkloczko/rpmbuild/BUILD/testpath-0.6.0/testpath/tempdir.py:docstring of testpath.tempdir.NamedFileInTemporaryDirectory:3: WARNING: py:class reference target not found: tempfile.NamedTemporaryFile
done
build succeeded, 3 warnings.