Updated documentation to remove debian/rhel headers.
diff --git a/docs/installation.rst b/docs/installation.rst
index 2a8b3d1..63555ab 100644
--- a/docs/installation.rst
+++ b/docs/installation.rst
@@ -29,18 +29,15 @@
compiler, headers for Python (if you're not using ``pypy``), and headers for
the OpenSSL and ``libffi`` libraries available on your system.
-Debian and Ubuntu systems
-~~~~~~~~~~~~~~~~~~~~~~~~~
-
-For Debian and Ubuntu, the following command line will ensure the required
+For Debian and Ubuntu, the following command will ensure that the required
dependencies are installed:
.. code-block:: console
$ sudo apt-get install build-essential libssl-dev libffi-dev python-dev
-Fedora and RHEL-based systems
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+For Fedora and RHEL-derivatives, the following command will ensure that the
+required dependencies are installed:
.. code-block:: console