@@ -123,14 +123,14 @@ images for your use. These can be images you create yourself or you

 can use images that others have previously created. Docker registries are the 

 **distribution** component of Docker.

-####Docker containers

+#### Docker containers

 Docker containers are similar to a directory. A Docker container holds everything that

 is needed for an application to run. Each container is created from a Docker

 image. Docker containers can be run, started, stopped, moved, and deleted. Each

 container is an isolated and secure application platform. Docker containers are the

  **run** component of Docker.

-##So how does Docker work? 

+## So how does Docker work? 

 So far, we've learned that:

 1. You can build Docker images that hold your applications.