Cleanup installation instructions in documentation

- Make it clear these are installation instructions for
  various cloud providers & custom servers
- Simplify titles of the installation tutorials

Fixes #17

docs/index.rst

@@ -5,6 +5,27 @@ The Littlest JupyterHub
 A simple `JupyterHub <https://github.com/jupyterhub/jupyterhub>`_ distribution for
 a small (0-50) number of users on a single server.
 
+Installation
+============
+
+The Littlest JupyterHub (TLJH) can run on any server that is running at least
+Ubuntu 18.04. We have a bunch of tutorials to get you started.
+
+- Tutorials to create a new server from scratch on a cloud provider & run TLJH
+  on it. These are **recommended** if you do not have much experience setting up
+  servers.
+
+  .. toctree::
+     :titlesonly:
+
+     tutorials/digitalocean
+     tutorials/jetstream
+     tutorials/google
+
+- :ref:`tutorial/custom`.
+  You should use this if your cloud provider does not already have a direct tutorial,
+  or if you have experience setting up servers.
+
 Tutorials
 =========
 

docs/tutorials/custom.rst

@@ -1,8 +1,8 @@
-.. _tutorial_quickstart_custom:
+.. _tutorials/custom:
 
-=======================================
+=============================
-Tutorial: JupyterHub on your own server
+Installing on your own server
-=======================================
+=============================
 
 Goal
 ====

docs/tutorials/digitalocean.rst

@@ -1,8 +1,8 @@
 .. _tutorial_quickstart_digitalocean:
 
-=====================================
+===========================
-Tutorial: JupyterHub on Digital Ocean
+Installing on Digital Ocean
-=====================================
+===========================
 
 Goal
 ====
@@ -15,7 +15,6 @@ Pre-requisites
 ==============
 
 #. A DigitalOcean account with a payment method attached.
-#. Some familiarity with the command line.
 
 Step 1: Installing The Littlest JupyterHub
 ==========================================

docs/tutorials/google.rst

@@ -1,8 +1,8 @@
 .. _tutorial_quickstart_google:
 
-====================================
+==========================
-Tutorial: JupyterHub on Google Cloud
+Installing on Google Cloud
-====================================
+==========================
 
 Goal
 ====

docs/tutorials/jetstream.rst

@@ -1,8 +1,8 @@
 .. _tutorial_quickstart_jetstream:
 
-=================================
+=======================
-Tutorial: JupyterHub on Jetstream
+Installing on Jetstream
-=================================
+=======================
 
 Goal
 ====
@@ -15,8 +15,7 @@ Prerequisites
 =============
 
 #. A Jetstream account with an XSEDE allocation; for more information,
-   go to the `Jetstream Allocations help page <http://wiki.jetstream-cloud.org/Jetstream+Allocations>`_.
+   see the `Jetstream Allocations help page <http://wiki.jetstream-cloud.org/Jetstream+Allocations>`_.
-#. Some familiarity with the command line.
 
 Step 1: Installing The Littlest JupyterHub
 ==========================================