edit pass: comm-service-tutorials

Author: paulth1

articles/communication-services/tutorials/hmac-header-tutorial.md

@@ -22,9 +22,13 @@ In this tutorial, you learn how to sign an HTTP request with a hash-based messag
 > [!NOTE]
 > We strongly encourage you to use [Azure SDKs](https://github.com/Azure/azure-sdk). The approach described here is a fallback option for cases when Azure SDKs can't be used for any reason.
 
-In this tutorial you learn how to:
+In this tutorial, you learn how to:
 > [!div class="checklist"]
-> * Sign an HTTP request with an HMAC signature.
+> * Create a request message.
+> * Create a content hash.
+> * Compute a signature.
+> * Create an authorization header string.
+> * Add headers.
 
 ::: zone pivot="programming-language-csharp"
 [!INCLUDE [Sign an HTTP request with C#](./includes/hmac-header-csharp.md)]
@@ -36,7 +40,7 @@ In this tutorial you learn how to:
 
 ## Clean up resources
 
-To clean up and remove a Communication Services subscription, delete the resource or resource group. Deleting the resource group also deletes any other resources associated with it. You can find out more about how to [clean up Azure Communication Services resources](../quickstarts/create-communication-resource.md#clean-up-resources) and [clean Azure Functions resources](../../azure-functions/create-first-function-vs-code-csharp.md#clean-up-resources).
+To clean up and remove a Communication Services subscription, delete the resource or resource group. Deleting the resource group also deletes any other resources associated with it. You can find out more about how to [clean up Azure Communication Services resources](../quickstarts/create-communication-resource.md#clean-up-resources) and [clean up Azure Functions resources](../../azure-functions/create-first-function-vs-code-csharp.md#clean-up-resources).
 
 ## Related content
 

articles/communication-services/tutorials/includes/hmac-header-csharp.md

@@ -34,7 +34,7 @@ The `hmac-sha256-signature` consists of:
 - Host
 - x-ms-content-sha256
 
-## Setup
+## Set up the authorization header
 
 The following steps describe how to construct the authorization header.
 

articles/communication-services/tutorials/includes/hmac-header-python.md

@@ -35,7 +35,7 @@ The `hmac-sha256-signature` consists of:
 - Host
 - x-ms-content-sha256
 
-## Setup
+## Set up the authorization header
 
 The following steps describe how to construct the authorization header.
 

articles/communication-services/tutorials/includes/trusted-service-js.md

@@ -32,7 +32,7 @@ This service is responsible for authenticating users to Communication Services.
 
 For more information, see the [client-server architecture](../../concepts/identity-model.md#client-server-architecture) and [authentication and authorization](../../concepts/authentication.md) conceptual documentation.
 
-## Setup
+## Set up a function
 
 This section describes the procedures to set up a function.
 

articles/communication-services/tutorials/postman-tutorial.md

@@ -30,7 +30,9 @@ In this tutorial, you learn how to:
 
 ## Download and install Postman
 
-Postman is a desktop application that's capable of making API requests against any HTTP API. Postman is commonly used for testing and exploring APIs. In this tutorial, you download the latest [desktop version from the Postman website](https://www.postman.com/downloads/). Postman has versions for Windows, Mac, and Linux, so download the version that's appropriate for your operating system. After the download is finished, open the application. The start screen asks you to sign in or create a Postman account. Creating an account is optional, and you can skip it by selecting **Skip and go to app**. Creating an account saves your API request settings to Postman. You can then pick up your requests on other computers.
+Postman is a desktop application that's capable of making API requests against any HTTP API. Postman is commonly used for testing and exploring APIs. In this tutorial, you download the latest [desktop version from the Postman website](https://www.postman.com/downloads/). Postman has versions for Windows, Mac, and Linux, so download the version that's appropriate for your operating system.
+
+After the download is finished, open the application. The start screen asks you to sign in or create a Postman account. Creating an account is optional, and you can skip it by selecting **Skip and go to app**. Creating an account saves your API request settings to Postman. You can then pick up your requests on other computers.
 
 :::image type="content" source="media/postman/create-account-or-skip.png" alt-text="Screenshot that shows the Postman start screen where you can create an account or go directly to the app.":::
 
@@ -181,9 +183,9 @@ After you enter it, select Ctrl+S or select **Save** to save the script to the c
 
 ## Create a request in Postman
 
-Now that everything is set up, you're ready to create a Communication Services request in Postman. To get started, select the Plus sign (+) next to the Communication Services collection.
+Now that everything is set up, you're ready to create a Communication Services request in Postman. To get started, select the plus sign (+) next to the Communication Services collection.
 
-:::image type="content" source="media/postman/create-request.png" alt-text="Screenshot that shows the Postman Plus sign (+).":::
+:::image type="content" source="media/postman/create-request.png" alt-text="Screenshot that shows the Postman plus sign (+).":::
 
 You created a new tab for your request in Postman, and now you need to configure it. You make a request against the SMS Send API, so be sure to refer to the [documentation for this API for assistance](/rest/api/communication/sms/send). Let's configure the Postman request.
 

articles/communication-services/tutorials/trusted-service-tutorial.md

@@ -20,9 +20,12 @@ This article describes how to use Azure Functions to build a trusted user access
 > [!IMPORTANT]
 > The endpoint created at the end of this tutorial isn't secure. Be sure to read about the security details in the [Azure Functions security](../../azure-functions/security-concepts.md) article. You need to add security to the endpoint to ensure that bad actors can't provision tokens.
 
-In this tutorial you learn how to:
+In this tutorial, you learn how to:
 > [!div class="checklist"]
-> * Create an Azure function that serves as a trusted token provisioning service.
+> * Set up a function.
+> * Generate access tokens.
+> * Test the function.
+> * Deploy and run the function.
 
 [!INCLUDE [Trusted Service JavaScript](./includes/trusted-service-js.md)]