Merge pull request #6222 from SvenDowideit/pr_out_reflow_to_80_columns

Initial edits to home page

docs/sources/index.md

@@ -6,79 +6,78 @@ page_keywords: docker, introduction, documentation, about, technology, understan
 
 **Develop, Ship and Run Any Application, Anywhere**
 
-[**Docker**](https://www.docker.io) is a platform for developers and
-sysadmins to develop, ship, and run applications.  Docker consists of:
+[**Docker**](https://www.docker.io) is a platform for developers and sysadmins
+to develop, ship, and run applications.  Docker lets you quickly assemble
+applications from components and eliminates the friction that can come when
+shipping code. Docker lets you get your code tested and deployed into production
+as fast as possible.
 
-* The Docker Engine - our lightweight and powerful open source container
-  virtualization technology combined with a work flow to help you build
-  and containerize your applications.
-* [Docker.io](https://index.docker.io) - our SAAS service that helps you
-  share and manage your applications stacks.
+Docker consists of:
 
-Docker enables applications to be quickly assembled from components and
-eliminates the friction when shipping code. We want to help you get code
-from your desktop, tested and deployed into production as fast as
-possible.
+* The Docker Engine - our lightweight and powerful open source container
+  virtualization technology combined with a work flow for building
+  and containerizing your applications.
+* [Docker.io](https://index.docker.io) - our SAAS service for
+  sharing and managing your application stacks.
 
 ## Why Docker?
 
 - **Faster delivery of your applications**  
-    * We want to help your environment work better. Docker containers,
-      and the work flow that comes with them, helps your developers,
-      sysadmins, QA folks, and release engineers work together to get code
-      into production and doing something useful. We've created a standard
-      container format that allows developers to care about their applications
-      inside containers and sysadmins and operators to care about running the
-      container. This creates a separation of duties that makes managing and
-      deploying code much easier and much more streamlined.
+    * We want your environment to work better. Docker containers,
+      and the work flow that comes with them, help your developers,
+      sysadmins, QA folks, and release engineers work together to get your code
+      into production and make it useful. We've created a standard
+      container format that lets developers care about their applications
+      inside containers while sysadmins and operators can work on running the
+      container in your deployment. This separation of duties streamlines and
+      simplifies the management and deployment of code.
     * We make it easy to build new containers, enable rapid iteration of
-      your applications and increase the visibility of changes. This
+      your applications, and increase the visibility of changes. This
       helps everyone in your organization understand how an application works
       and how it is built.
     * Docker containers are lightweight and fast! Containers have
-      sub-second launch times! With containers you can reduce the cycle
-      time in development, testing and deployment.
+      sub-second launch times, reducing the cycle
+      time of development, testing, and deployment.
 
 - **Deploy and scale more easily**  
     * Docker containers run (almost!) everywhere. You can deploy your
       containers on desktops, physical servers, virtual machines, into
-      data centers and to public and private clouds.
-    * As Docker runs on so many platforms it makes it easy to move your
+      data centers, and up to public and private clouds.
+    * Since Docker runs on so many platforms, it's easy to move your
       appications around. You can easily move an application from a
       testing environment into the cloud and back whenever you need.
-    * The lightweight containers Docker creates also making scaling and
-      down really fast and easy. If you need more containers you can
-      quickly launch them and then shut them down when you don't need them
-      anymore.
+    * Docker's lightweight containers Docker also make scaling up and
+      down fast and easy. You can quickly launch more containers when
+      needed and then shut them down easily when they're no longer needed.
 
 - **Get higher density and run more workloads**  
-    * Docker containers don't need a hypervisor so you can pack more of
+    * Docker containers don't need a hypervisor, so you can pack more of
       them onto your hosts. This means you get more value out of every
-      server and can potentially reduce the money you spend on equipment and
-      licenses!
+      server and can potentially reduce what you spend on equipment and
+      licenses.
 
 - **Faster deployment makes for easier management**  
-    * As Docker speeds up your work flow it makes it easier to make lots
-      of little changes instead of huge, big bang updates. Smaller
-      changes mean smaller risks and mean more uptime!
+    * As Docker speeds up your work flow, it gets easier to make lots
+      of small changes instead of huge, big bang updates. Smaller
+      changes mean reduced risk and more uptime.
 
 ## About this guide
 
-First we'll show you [what makes Docker tick in our Understanding Docker
-section](introduction/understanding-docker.md):
+First, the [Understanding Docker
+section](introduction/understanding-docker.md) will help you:
 
- - You will find see how Docker works at a high level;
- - The architecture of Docker;
+ - See how Docker works at a high level
+ - Understand the architecture of Docker
  - Discover Docker's features;
- - See how Docker compares to virtual machines;
- - And see some common use cases.
+ - See how Docker compares to virtual machines
+ - See some common use cases.
 
 > [Click here to go to the Understanding
 > Docker section](introduction/understanding-docker.md).
 
 ### Installation Guides
 
-Then we'll learn how to install Docker on a variety of platforms in our
+Next, we'll show you how to install Docker on a variety of platforms in the
 [installation](/installation/#installation) section.
 
 > [Click here to go to the Installation
@@ -86,7 +85,9 @@ Then we'll learn how to install Docker on a variety of platforms in our
 
 ### Docker User Guide
 
-Once you've gotten Docker installed we recommend you step through our [Docker User Guide](/userguide/), which will give you an in depth introduction to Docker.
+Once you've gotten Docker installed we recommend you work through the
+[Docker User Guide](/userguide/), to learn about Docker in more detail and
+answer questions about usage and implementation.
 
 > [Click here to go to the Docker User Guide](/userguide/).