0.8.0: sphinx warnings reference target not found

[kloczek]

On building my packages I'm using sphinx-build command with -n switch which shows warmings about missing references. These are not critical issues.
Here is the output with warnings:

+ /usr/bin/sphinx-build -n -T -b man docs build/sphinx/man
Running Sphinx v4.5.0
loading translations [en]... done
making output directory... done
building [mo]: targets for 0 po files that are out of date
building [man]: all manpages
updating environment: [new config] 7 added, 0 changed, 0 removed
reading sources... [100%] options
looking for now-outdated files... none found
pickling environment... done
checking consistency... done
writing... python-sphinx-typlog-theme.3 { intro guide options markup contributing changelog } /home/tkloczko/rpmbuild/BUILD/sphinx-typlog-theme-0.8.0/docs/markup.rst:47: WARNING: py:func reference target not found: spam
done
build succeeded, 1 warning.

You can peak on fixes that kind of issues in other projects
latchset/jwcrypto#289
click-contrib/sphinx-click@abc31069