@@ -65,7 +65,7 @@ Your Docker Hub account is now active and ready for you to use!

 ##  Next steps

-Next, let's start learning how to Dockerize applications with our "Hello World!"

+Next, let's start learning how to Dockerize applications with our "Hello World"

 exercise.

 Go to [Dockerizing Applications](/userguide/dockerizing).

@@ -1,20 +1,20 @@

-page_title: Dockerizing Applications: A "Hello World!"

-page_description: A simple "Hello World!" exercise that introduced you to Docker.

+page_title: Dockerizing Applications: A "Hello World"

+page_description: A simple "Hello World" exercise that introduced you to Docker.

 page_keywords: docker guide, docker, docker platform, virtualization framework, how to, dockerize, dockerizing apps, dockerizing applications, container, containers

-# Dockerizing Applications: A "Hello World!"

+# Dockerizing Applications: A "Hello World"

 *So what's this Docker thing all about?*

 Docker allows you to run applications inside containers. Running an

 application inside a container takes a single command: `docker run`.

-## Hello World!

+## Hello World

 Let's try it now.

     $ sudo docker run ubuntu:14.04 /bin/echo 'Hello World'

-    Hello World!

+    Hello World

 And you just launched your first container!

@@ -34,17 +34,17 @@ image registry: [Docker Hub](https://hub.docker.com).

 Next we told Docker what command to run inside our new container:

-    /bin/echo 'Hello World!'

+    /bin/echo 'Hello World'

 When our container was launched Docker created a new Ubuntu 14.04

 environment and then executed the `/bin/echo` command inside it. We saw

 the result on the command line:

-    Hello World!

+    Hello World

 So what happened to our container after that? Well Docker containers

 only run as long as the command you specify is active. Here, as soon as

-`Hello World!` was echoed, the container stopped.

+`Hello World` was echoed, the container stopped.

 ## An Interactive Container

@@ -88,7 +88,7 @@ use the `exit` command to finish.

 As with our previous container, once the Bash shell process has

 finished, the container is stopped.

-## A Daemonized Hello World!

+## A Daemonized Hello World

 Now a container that runs a command and then exits has some uses but

 it's not overly helpful. Let's create a container that runs as a daemon,

@@ -99,7 +99,7 @@ Again we can do this with the `docker run` command:

     $ sudo docker run -d ubuntu:14.04 /bin/sh -c "while true; do echo hello world; sleep 1; done"

     1e5535038e285177d5214659a068137486f96ee5c2e85a4ac52dc83f2ebe4147

-Wait what? Where's our "Hello World!" Let's look at what we've run here.

+Wait what? Where's our "Hello World" Let's look at what we've run here.

 It should look pretty familiar. We ran `docker run` but this time we

 specified a flag: `-d`. The `-d` flag tells Docker to run the container

 and put it in the background, to daemonize it.

@@ -29,7 +29,7 @@ environment. To learn more;

 Go to [Using Docker Hub](/userguide/dockerhub).

-## Dockerizing Applications: A "Hello World!"

+## Dockerizing Applications: A "Hello World"

 *How do I run applications inside containers?*