Merge pull request #48 from toshihikoyanase/add-next-action-to-usage

Add next actions at the end of usage.

docs/source/index.rst

@@ -1,7 +1,7 @@
 Welcome to OptunaHub's documentation!
 =====================================
 
-`OptunaHub <https://hub.optuna.org/>`__ is a registry of third-party Optuna packages.
+`OptunaHub <https://hub.optuna.org/>`__ is a registry of third-party packages designed for `Optuna <https://optuna.org>`__.
 It allows users to share and discover Optuna packages that are not included in the official Optuna distribution.
 The `optunahub <https://github.com/optuna/optunahub/>`_ library provides Python APIs to load and use packages from the OptunaHub registry.
 
@@ -15,7 +15,7 @@ Install the `optunahub`_ package.
 
       pip install optunahub
 
-Load the package you want from the OptunaHub registry as follows.
+Load the package you want from the OptunaHub registry. In the next example code, you will load the ``SimulatedAnnealingSampler`` from the `samplers/simulated_annealing <https://hub.optuna.org/samplers/simulated_annealing/>`__ package.
 
 .. code-block:: python
 
@@ -37,6 +37,9 @@ Load the package you want from the OptunaHub registry as follows.
    print(study.best_trial.value, study.best_trial.params)
 
 
+Now that you've successfully loaded a package from the OptunaHub registry, you can start using `optunahub`_ in your optimization!
+Get ready to explore the most suitable packages for your problems in the `OptunaHub registry <https://hub.optuna.org/>`_.
+
 .. toctree::
    :maxdepth: 2
    :caption: Contents: