style: pre-commit fixes

docs/source/user_guide/installation/index.rst

@@ -15,15 +15,15 @@ It can be installed using ``pip`` or ``conda``, or from source.
 .. tab:: conda
 
    PyBaMM is part of the `Anaconda <https://docs.continuum.io/anaconda/>`_ distribution and is available as a conda package through the conda-forge channel.
-   
+
    The ``pybamm`` package on conda-forge installs PyBaMM with all the `required and optional dependencies <index.html#dependencies>`_ available on conda-forge.
    At the moment, PyBaMM's conda-forge distribution does not include the `IDAKLUSolver <../../api/solvers/idaklu_solver.html#idaklu-solver>`_.
 
    .. code:: bash
 
       conda install -c conda-forge pybamm
 
-   The ``pybamm-base`` package installs PyBaMM only with its `required dependencies <index.html#install-required-dependencies>`_. 
+   The ``pybamm-base`` package installs PyBaMM only with its `required dependencies <index.html#install-required-dependencies>`_.
 
    .. code:: bash