Fix typos in the user guide main page

Signed-off-by: Joel Friedly <joelfriedly@gmail.com>

docs/sources/userguide/index.md

@@ -10,7 +10,7 @@ using Docker and integrating it into your environment.
 
 We’ll teach you how to use Docker to:
 
-* Dockerizing your applications.
+* Dockerize your applications.
 * Run your own containers.
 * Build Docker images.
 * Share your Docker images with others.
@@ -25,7 +25,7 @@ the Docker life cycle:
 
 Docker Hub is the central hub for Docker. It hosts public Docker images
 and provides services to help you build and manage your Docker
-environment. To learn more;
+environment. To learn more:
 
 Go to [Using Docker Hub](/userguide/dockerhub).
 
@@ -34,7 +34,7 @@ Go to [Using Docker Hub](/userguide/dockerhub).
 *How do I run applications inside containers?*
 
 Docker offers a *container-based* virtualization platform to power your
-applications. To learn how to Dockerize applications and run them.
+applications. To learn how to Dockerize applications and run them:
 
 Go to [Dockerizing Applications](/userguide/dockerizing).
 
@@ -55,7 +55,7 @@ Go to [Working With Containers](/userguide/usingdocker).
 Once you've learnt how to use Docker it's time to take the next step and
 learn how to build your own application images with Docker.
 
-Go to [Working with Docker Images](/userguide/dockerimages)
+Go to [Working with Docker Images](/userguide/dockerimages).
 
 ## Linking Containers Together