chore: minor pre-commit fixes

Author: zmx27

docs/source/index.rst

@@ -16,7 +16,7 @@ Getting started
 Welcome to the ``diffpy.distanceprinter`` documentation!
 
 This package is not designed to be installed independently. To get started, please visit
-https://www.diffpy.org/products/xPDFsuite.html for more information about the xpdfsuite package and 
+https://www.diffpy.org/products/xPDFsuite.html for more information about the xpdfsuite package and
 download the package together with ``diffpy.xpdfsuite``.
 
 =======

src/diffpy/distanceprinter/distanceprinter_app.py

@@ -7,7 +7,8 @@ def main():
     parser = argparse.ArgumentParser(
         prog="diffpy.distanceprinter",
         description=(
-            "Distance Printer, calculate the inter atomic distances. Part of xPDFsuite.\n\n"
+            "Distance Printer, calculate the inter atomic distances. "
+            "Part of xPDFsuite.\n\n"
             "For more information, visit: "
             "https://github.com/diffpy/diffpy.distanceprinter/"
         ),