DOC: Remove fsl package from toc

doc/fsl.rst

-``fsl``
-=======
-
-.. toctree::
-   :hidden:
-
-   fsl.data
-   fsl.scripts
-   fsl.utils
-   fsl.transform
-   fsl.version
-   fsl.wrappers
-
-
-The :mod:`fsl` package provides the top-level Python package namespace for
-``fslpy``, and for other FSL python libaries. It is a `native namespace
-package <https://packaging.python.org/guides/packaging-namespace-packages/>`_,
-which means that there is no ``fsl/__init__.py`` file.
-
-
-Other libraries can use the ``fsl`` package namepace simply by also omitting a
-``fsl/__init__.py`` file, and by ensuring that there are no naming conflicts
-with any sub-packages of ``fslpy`` or any other projects which use the ``fsl``
-package namespace.

doc/index.rst

@@ -8,8 +8,8 @@ within `FSL <https://fsl.fmrib.ox.ac.uk/fsl/fslwiki>`_ and by
 |fsleyes_apidoc|_.
 
 
-The top-level Python package for ``fslpy`` is called ``fsl``.  It is broadly
-split into the following sub-packages:
+The top-level Python package for ``fslpy`` is called :mod:`fsl`.  It is
+broadly split into the following sub-packages:
 
 
 .. autosummary::
@@ -22,10 +22,22 @@ split into the following sub-packages:
    fsl.wrappers
 
 
+The :mod:`fsl` package provides the top-level Python package namespace for
+``fslpy``, and for other FSL python libaries. It is a `native namespace
+package <https://packaging.python.org/guides/packaging-namespace-packages/>`_,
+which means that there is no ``fsl/__init__.py`` file.
+
+
+Other libraries can use the ``fsl`` package namepace simply by also omitting a
+``fsl/__init__.py`` file, and by ensuring that there are no naming conflicts
+with any sub-packages of ``fslpy`` or any other projects which use the ``fsl``
+package namespace.
+
+
+
 .. toctree::
    :hidden:
 
    self
-   fsl
    contributing
    changelog