Add content to Installation docs page

docs/source/installation.rst

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 Installation
-------------
+============
+
+
+To install the latest version of the library, you can simply run:
+
+.. code-block:: bash
+
+    pip install neo4j-viz
+
+
+Optional dependencies
+---------------------
+
+In addition, there are a few optional dependencies that you can install to enable additional features of the library.
+
+
+Pandas `from_dfs` importer
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+To install the additional dependencies required for the :doc:`from_dfs importer <./api-reference/from_pandas>` you can run:
+
+.. code-block:: bash
+
+    pip install neo4j-viz[pandas]
+
+
+Neo4j Graph Data Science `from_gds` importer
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+To install the additional dependencies required for the :doc:`from_gds importer <./api-reference/from_gds>` you can run:
+
+.. code-block:: bash
+
+    pip install neo4j-viz[gds]
+
+Notebook tutorials
+~~~~~~~~~~~~~~~~~~
+
+To install all the additional dependencies required for the :doc:`notebook examples <./tutorials/index>` you can run:
+
+.. code-block:: bash
+
+    pip install neo4j-viz[notebook]