Merge pull request #239 from Cadair/readme

Add info in README

README.rst

@@ -13,15 +13,32 @@ Such packages can make use of the setup, installation, and documentation
 infrastructure developed for the ``astropy`` core package simply by
 using this template to lay out the package.
 
-For more information, see:
+Using this package
+------------------
 
-* `Detailed instructions for using this template <http://docs.astropy.org/en/latest/development/affiliated-packages.html>`_
-* `The Affiliated Packages section of the Astropy web site <http://affiliated.astropy.org>`_
-* `This template's Github code repository <https://github.com/astropy/package-template>`_
+This package makes use of the `cookiecutter
+<https://cookiecutter.readthedocs.io/en/latest/index.html>`__ package to make it
+easier to get started with the package template. You will need to `install cookiecutter <https://cookiecutter.readthedocs.io/en/latest/installation.html>`__ which can
+be done easily using conda or pip::
 
-Status reports for developers
------------------------------
+  conda install cookiecutter
 
-.. image:: https://travis-ci.org/astropy/package-template.svg
-    :target: https://travis-ci.org/astropy/package-template
-    :alt: Travis Status
+  pip install cookiecutter
+
+Once you have cookiecutter installed you can run::
+
+  cookiecutter gh:astropy/package-template
+
+
+Which will ask you a series of questions to configure your package. For more information you can see the `package template documentation <>`__.
+
+
+Improving the package template
+------------------------------
+
+If you want to modify this package to add or fix things, the actual folder that
+the user ends up with is the ``{{ cookiecutter.package_name }}`` folder in this
+repository. Everything in the repository that is not in this folder is not part
+of the template that the user will have rendered.
+
+For further information on writing templates for cookiecutter see `the docs <https://cookiecutter.readthedocs.io/en/latest/first_steps.html>`__