Add a small introduction

lektor/content/contents.lr

@@ -2,6 +2,20 @@ title: Welcome to ucloud!
 ---
 body:
 
-This is the beginning of ucloud. What we are working on right now:
+## Introduction
+
+ucloud is an easy to use cloud management system. It allows you to
+create, schedule, migrate and destroy virtual machines.
+
+It is an alternative to
+[OpenStack](https://www.openstack.org/),
+[OpenNebula](https://opennebula.org/) or
+[Cloudstack](https://cloudstack.apache.org/).
+
+ucloud is the first cloud management system that
+puts **IPv6 first**. ucloud also has an integral **ordering** process
+that we missed at existing solutions.
+
+## Documentation that we are working on right now:
 
 * [How to install ucloud](/install)

lektor/content/install/contents.lr

@@ -12,3 +12,5 @@ To operate ucloud, you need the following components:
 
 * etcd: an easy to use, distributed data base
 * utop: an easy to use one time password implementation
+* ucloud-api: allows to communicate with ucloud and is the only public
+  entrance point