@@ -21,12 +21,12 @@ are VMWare's vmdk, Oracle Virtualbox's vdi, and Amazon EC2's ami. In theory thes

 automatically package their application into a "machine" for easy distribution and deployment. In practice, that almost never

 happens, for a few reasons:

-	* *Size*: VMs are very large which makes them impractical to store and transfer.

-	* *Performance*: running VMs consumes significant CPU and memory, which makes them impractical in many scenarios, for example local development of multi-tier applications, and

-		large-scale deployment of cpu and memory-intensive applications on large numbers of machines.

-	* *Portability*: competing VM environments don't play well with each other. Although conversion tools do exist, they are limited and add even more overhead.

-	* *Hardware-centric*: VMs were designed with machine operators in mind, not software developers. As a result, they offer very limited tooling for what developers need most:

-		building, testing and running their software. For example, VMs offer no facilities for application versioning, monitoring, configuration, logging or service discovery.

+  * *Size*: VMs are very large which makes them impractical to store and transfer.

+  * *Performance*: running VMs consumes significant CPU and memory, which makes them impractical in many scenarios, for example local development of multi-tier applications, and

+  	large-scale deployment of cpu and memory-intensive applications on large numbers of machines.

+  * *Portability*: competing VM environments don't play well with each other. Although conversion tools do exist, they are limited and add even more overhead.

+  * *Hardware-centric*: VMs were designed with machine operators in mind, not software developers. As a result, they offer very limited tooling for what developers need most:

+  	building, testing and running their software. For example, VMs offer no facilities for application versioning, monitoring, configuration, logging or service discovery.

 By contrast, Docker relies on a different sandboxing method known as *containerization*. Unlike traditional virtualization,

 containerization takes place at the kernel level. Most modern operating system kernels now support the primitives necessary