Edit CellularNonIPSocket.md

Edit file, mostly for minor style change and international English (as opposed to UK English).

Author: Amanda Butler

docs/api/networksocket/CellularNonIPSocket.md

@@ -1,17 +1,16 @@
 ## Non-IP cellular socket
 
-The CellularNonIPSocket class provides, through standard socket send and recv member functions, the ability to send and receive 3GPP Non-IP datagrams (NIDD) using Cellular IoT feature. This feature is implemented in [`ControlPlane_netif`](https://os.mbed.com/docs/development/mbed-os-api-doxy/classmbed_1_1_control_plane__netif.html) class.
+The CellularNonIPSocket class provides, through standard socket `send` and `recv` member functions, the ability to send and receive 3GPP non-IP datagrams (NIDD) using our cellular IoT feature. This feature is implemented in the [`ControlPlane_netif`](https://os.mbed.com/docs/development/mbed-os-api-doxy/classmbed_1_1_control_plane__netif.html) class.
 
-The constructor takes no parameters. To initialize the socket on a specified NetworkInterface, you must call `open` method, which takes a CellularContext pointer.
+The constructor takes no parameters. To initialize the socket on a specified NetworkInterface, you must call the `open` method, which takes a CellularContext pointer.
 
-[`CellularContext`](https://os.mbed.com/docs/development/mbed-os-api-doxy/_cellular_context_8h.html) is setting up the modem into the Control Plane optimisation mode of operation if it is requested and cellular network supports it.
+[`CellularContext`](https://os.mbed.com/docs/development/mbed-os-api-doxy/_cellular_context_8h.html) sets up the modem into the Control Plane optimization mode of operation if it is requested and if the cellular network supports it.
 
-Control plane optimisations is a new feature for Cellular IoT (CIoT), where the device can use cellular control channels for data communications, to save power and resources as there is less radio singling needed.
+Control plane optimization is a new feature for cellular IoT (CIoT). With it, the device can use cellular control channels for data communications, to save power and resources. It does this by using less radio singling.
 
-NOTE! Non-IP usage usually requires integration to cellular operator messaging service. The service supports a web API to send and receive to the non-IP using devices.
+Note: <span class="notes">**Note:** Non-IP use usually requires integration to a cellular operator messaging service. The service supports a web API to send to and receive the non-IP using devices.</span>
 
-
-Control Plane optimisation mode can be requested either on CellularDevice's [`create_context`](https://os.mbed.com/docs/development/mbed-os-api-doxy/classmbed_1_1_cellular_device.html#a43b9e992dff1cb5d880acec576e9d06f) or configured in cellular mbed_lib.json:
+You can request Control Plane optimization mode either with CellularDevice's [`create_context`](https://os.mbed.com/docs/development/mbed-os-api-doxy/classmbed_1_1_cellular_device.html#a43b9e992dff1cb5d880acec576e9d06f) or by configuring it in the cellular `mbed_lib.json`:
 
 ```json
 {
@@ -24,12 +23,13 @@ Control Plane optimisation mode can be requested either on CellularDevice's [`cr
     }
 }
 ```
-ControlPlane
+
 ### CellularNonIPSocket class reference
 
 [![View code](https://www.mbed.com/embed/?type=library)](https://os.mbed.com/docs/development/mbed-os-api-doxy/classmbed_1_1_cellular_non_i_p_socket.html)
 
-The following code demonstrates how to create and use a cellular Non-IP socket:
+The following code demonstrates how to create and use a cellular non-IP socket:
+
 ```
 
 #include "mbed.h"