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

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

Author: pre-commit-ci[bot]

source/tutorials/packaging-projects.rst

@@ -339,7 +339,7 @@ Make sure you have the latest version of PyPA's :ref:`build` installed:
 
 .. tip:: If you have trouble installing these, see the
    :doc:`installing-packages` tutorial. You will get an error if you don't have the build package so install it first .. code-block:: bash pip install build
-   
+
 Now run this command from the same directory where :file:`pyproject.toml` is located:
 
 .. tab:: Unix/macOS