docs: don't include _static
This is a default Sphinx config, but we currently don't have a _static
folder, so this causes an error with newer versions of Sphinx.
@@ -159,7 +159,7 @@ html_theme = "sphinx_rtd_theme"
# here, relative to this directory. They are copied after the builtin
# static files, so a file named "default.css" will overwrite the builtin
# "default.css".
-html_static_path = ["_static"]
+# html_static_path = ["_static"]
# If not '', a 'Last updated on:' timestamp is inserted at every page
# bottom, using the given strftime format.
