Minor updates

Author: dominicbetts

articles/iot-pnp/iot-plug-and-play-glossary.md

@@ -43,7 +43,7 @@ The Azure IoT certification service runs a set of certification tests when you s
 
 ## Azure IoT Tools extension
 
-Azure IoT Tools is a a collection of extensions in [Visual Studio code](#visual-studio-code) that help you interact with IoT Hub and develop IoT devices. For develop IoT Plug and Play device, it provides:
+Azure IoT Tools is a a collection of extensions in [Visual Studio code](#visual-studio-code) that help you interact with IoT Hub and develop IoT devices. For IoT Plug and Play device development, it helps you to:
 
 - Author [device capability models](#device-capability-model) and [interfaces](#interface).
 - Publish to [model repositories](#model-repository).
@@ -195,4 +195,4 @@ Telemetry fields defined in an [interface](#interface) represent measurements. T
 
 ## Visual Studio code
 
-Visual Studio code is a modern code editor available for multiple platforms. Extensions, such as the [Azure IoT Tools](https://marketplace.visualstudio.com/items?itemName=vsciot-vscode.azure-iot-tools) enable you to customize it to support a wide range of development scenarios.
+Visual Studio code is a modern code editor available for multiple platforms. Extensions, such as those in the [Azure IoT Tools](https://marketplace.visualstudio.com/items?itemName=vsciot-vscode.azure-iot-tools) pack, enable you to customize the editor to support a wide range of development scenarios.

articles/iot-pnp/overview-iot-plug-and-play.md

@@ -60,7 +60,7 @@ As a device developer, you can develop an IoT hardware product that supports IoT
 
 1. Author the device software or firmware that implements the capabilities declared in the device capability model and interfaces. The Azure IoT SDK includes APIs to implement device capability models.
 
-The [Azure IoT Tools for VS Code](https://marketplace.visualstudio.com/items?itemName=vsciot-vscode.azure-iot-tools) provides many features to assist you. For example, as a device developer you can use the extension to generate a skeleton C project from a capability model. However you can use any IDE to author and implement device capability models.
+The [Azure IoT Tools for VS Code](https://marketplace.visualstudio.com/items?itemName=vsciot-vscode.azure-iot-tools) extension pack provides many features to assist you. For example, as a device developer you can use an extension to generate a skeleton C project from a capability model. However you can use any IDE to author and implement device capability models.
 
 ## Certify an IoT Plug and Play device
 
@@ -73,6 +73,7 @@ As a device developer, you can submit IoT hardware products for certification. Y
 - Publish to the Certified for IoT device catalog.
 
 ## Regional availability
+
 During public preview, IoT Plug and Play is available in the North Europe, Central US, and Japan East regions. Please make sure you create your hub in one of these regions.
 
 ## Message quotas in IoT Hub

articles/iot-pnp/quickstart-create-pnp-device.md

@@ -27,7 +27,7 @@ To complete this quickstart, you need to install the following software on your
 
 ### Install Azure IoT Tools
 
-Use the following steps to install the [Azure IoT Tools for VS Code](https://marketplace.visualstudio.com/items?itemName=vsciot-vscode.azure-iot-tools):
+Use the following steps to install the [Azure IoT Tools for VS Code](https://marketplace.visualstudio.com/items?itemName=vsciot-vscode.azure-iot-tools) extension pack:
 
 1. In VS Code, select the **Extensions** tab.
 1. Search for **Azure IoT Tools**.

articles/iot-pnp/tutorial-build-device-certification.md

@@ -28,7 +28,7 @@ The certification tests check that:
 To complete this tutorial, you need:
 
 - [Visual Studio Code](https://code.visualstudio.com/download)
-- [Azure IoT Tools for VS Code](https://marketplace.visualstudio.com/items?itemName=vsciot-vscode.azure-iot-tools)
+- [Azure IoT Tools for VS Code](https://marketplace.visualstudio.com/items?itemName=vsciot-vscode.azure-iot-tools) extension pack
 
 You also need the IoT Plug and Play device that you create in the [Quickstart: Use a device capability model to create a device](quickstart-create-pnp-device.md).
 

articles/iot-pnp/tutorial-pnp-visual-studio-code.md

@@ -32,7 +32,7 @@ In this tutorial, you learn how to:
 To work with the device capability model in this tutorial, you need:
 
 * [Visual Studio Code](https://code.visualstudio.com/download): VS Code is available for multiple platforms
-* [Azure IoT Tools for VS Code](https://marketplace.visualstudio.com/items?itemName=vsciot-vscode.azure-iot-tools). Use the following steps to install it in VS Code:
+* [Azure IoT Tools for VS Code](https://marketplace.visualstudio.com/items?itemName=vsciot-vscode.azure-iot-tools) extension pack. Use the following steps to install the extension pack in VS Code:
 
     1. In VS Code, select the **Extensions** tab.
     1. Search for **Azure IoT Tools**.