@@ -240,8 +240,8 @@ You now have a running container! From here you can manage your container, inter

 your application and then, when finished, stop and remove your container.

 ## The underlying technology

-Docker is written in Go and makes use of several Linux kernel features to

-deliver the functionality we've seen.

+Docker is written in Go and makes use of several kernel features to

+deliver the functionality we've seen. 

 ### Namespaces

 Docker takes advantage of a technology called `namespaces` to provide the

@@ -251,7 +251,7 @@ creates a set of *namespaces* for that container.

 This provides a layer of isolation: each aspect of a container runs in its own

 namespace and does not have access outside it.

-Some of the namespaces that Docker uses are:

+Some of the namespaces that Docker uses on Linux are:

  - **The `pid` namespace:** Used for process isolation (PID: Process ID). 

  - **The `net` namespace:** Used for managing network interfaces (NET:

@@ -263,7 +263,7 @@ Some of the namespaces that Docker uses are:

 Timesharing System).

 ### Control groups

-Docker also makes use of another technology called `cgroups` or control groups.

+Docker on Linux also makes use of another technology called `cgroups` or control groups.

 A key to running applications in isolation is to have them only use the

 resources you want. This ensures containers are good multi-tenant citizens on a

 host. Control groups allow Docker to share available hardware resources to