[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

preview.py

@@ -1,6 +1,5 @@
 #!/usr/bin/env python
-"""Builds preview pages of the theme and starts a webserver if not already started
-"""
+"""Builds preview pages of the theme and starts a webserver if not already started"""
 from functools import partial
 from http.server import SimpleHTTPRequestHandler
 from pathlib import Path

src/mantid_sphinx_theme/__init__.py

@@ -1,5 +1,5 @@
-"""Provides a Sphinx theme for Mantid project
-"""
+"""Provides a Sphinx theme for Mantid project"""
+
 from ._version import __version__  # noqa: F401
 
 from pathlib import Path