Add link about installation depdencies
diff --git a/docs/development/getting-started.rst b/docs/development/getting-started.rst
index 3d9012e..ab92c37 100644
--- a/docs/development/getting-started.rst
+++ b/docs/development/getting-started.rst
@@ -2,9 +2,10 @@
===============
Working on ``cryptography`` requires the installation of a small number of
-development dependencies. These are listed in ``dev-requirements.txt`` and they
-can be installed in a `virtualenv`_ using `pip`_. Once you've installed the
-dependencies, install ``cryptography`` in ``editable`` mode. For example:
+development dependencies in addtion to the depedencies for `installation`_.
+These are listed in ``dev-requirements.txt`` and they can be installed in a
+`virtualenv`_ using `pip`_. Once you've installed the dependencies, install
+``cryptography`` in ``editable`` mode. For example:
.. code-block:: console
@@ -87,3 +88,4 @@
.. _`pip`: https://pypi.python.org/pypi/pip
.. _`sphinx`: https://pypi.python.org/pypi/Sphinx
.. _`reStructured Text`: http://sphinx-doc.org/rest.html
+.. _`installation`: https://cryptography.io/en/latest/installation/