Tutorial link in front page, audience, objectives, and prerequisites

doc/tutorial/index.rst

@@ -0,0 +1,25 @@
+.. _tutorial:
+
+===============
+Sphinx tutorial
+===============
+
+In this tutorial you will build a simple documentation project using Sphinx,
+and view it in your web browser as HTML.
+We will include narrative, handwritten documentation,
+as well as autogenerated API documentation.
+
+The tutorial is aimed towards people willing to learn
+the fundamentals of Sphinx,
+how projects are created and structured,
+and how to contribute to an existing project.
+To showcase Sphinx automatic documentation generation capabilities
+we will use Python, which is the default :term:`domain`:
+even though several other languages are supported,
+they all work in a similar way.
+
+To follow the tutorial you will need a working Python installation for development.
+We will use *Python virtual environments* to create our project,
+you can read more about them in the `Python Packaging User Guide`_.
+
+.. _Python Packaging User Guide: https://packaging.python.org/guides/installing-using-pip-and-virtual-environments/#creating-a-virtual-environment