Fix links in readme

README.rst

@@ -23,20 +23,11 @@ However, users who prefer pip can install via::
 
     		pip install halotools
 
-You can find detailed installation instructions
-in the :ref:`step_by_step_install` section of http://halotools.readthedocs.io.
-After installing the package, you should follow the :ref:`step_by_step_install` 10-minute tutorial.
-This will get you set up with the default halo catalog so that you can quickly get started
-with creating mock galaxy populations.
-
-After installation, it is recommended that you download the default halo catalog::
-
-    $ download_initial_halocat.py
-
-Halotools works with any halo catalog, but downloading the default halo catalog
-automatically configures the halotools cache directory. More information about
-halo catalog download options in the :ref:`download_default_halos` section of the 10-minute tutorial.
+You can find detailed installation instructions `halotools.readthedocs.io <http://halotools.readthedocs.io/>`_.
 
+After installing the package, you should navigate to the *Quickstart Guides and Tutorials*
+section and follow the *Getting started with Halotools* 10-minute tutorial.
+This will get you set up with the default halo catalog so that you can quickly get started with creating mock galaxy populations.
 
 Documentation
 -------------