Apply suggestions from code review

Added periods to alt text descriptions.

Author: v-stsavell

articles/analysis-services/analysis-services-addservprinc-admins.md

@@ -32,7 +32,7 @@ You can configure server administrators using SQL Server Management Studio (SSMS
 2. In **Server Properties** > **Security**, click **Add**.
 3. In **Select a User or Group**, search for your registered app by name, select, and then click **Add**.
 
-    ![Screenshot that shows Search for service principal account](./media/analysis-services-addservprinc-admins/aas-add-sp-ssms-picker.png)
+    ![Screenshot that shows Search for service principal account.](./media/analysis-services-addservprinc-admins/aas-add-sp-ssms-picker.png)
 
 4. Verify the service principal account ID, and then click **OK**.
 

articles/analysis-services/analysis-services-async-refresh.md

@@ -40,7 +40,7 @@ https://westus.asazure.windows.net/servers/myserver/models/AdventureWorks/
 
 By using the base URL, resources and operations can be appended based on the following parameters: 
 
-![Diagram that shows asynchronous refresh logic](./media/analysis-services-async-refresh/aas-async-refresh-flow.png)
+![Diagram that shows asynchronous refresh logic.](./media/analysis-services-async-refresh/aas-async-refresh-flow.png)
 
 - Anything that ends in **s** is a collection.
 - Anything that ends with **()** is a function.

articles/analysis-services/analysis-services-backup.md

@@ -33,21 +33,21 @@ Before backing up, you need to configure storage settings for your server.
 ### To configure storage settings
 1.  In Azure portal > **Settings**, click **Backup**.
 
-    ![Screenshot that shows Backups in Settings](./media/analysis-services-backup/aas-backup-backups.png)
+    ![Screenshot that shows Backups in Settings.](./media/analysis-services-backup/aas-backup-backups.png)
 
 2.  Click **Enabled**, then click **Storage Settings**.
 
-    ![Screenshot that shows Enabled button](./media/analysis-services-backup/aas-backup-enable.png)
+    ![Screenshot that shows Enabled button.](./media/analysis-services-backup/aas-backup-enable.png)
 
 3. Select your storage account or create a new one.
 
 4. Select a container or create a new one.
 
-    ![Screenshot that shows selecting a container](./media/analysis-services-backup/aas-backup-container.png)
+    ![Screenshot that shows selecting a container.](./media/analysis-services-backup/aas-backup-container.png)
 
 5. Save your backup settings.
 
-    ![Screenshot that shows Save backup settings](./media/analysis-services-backup/aas-backup-save.png)
+    ![Screenshot that shows Save backup settings.](./media/analysis-services-backup/aas-backup-save.png)
 
 ## Backup
 

articles/analysis-services/analysis-services-connect-excel.md

@@ -28,11 +28,11 @@ Connecting to a server in Excel is supported by using Get Data in Excel 2016 and
     > [!IMPORTANT]
     > If you sign in with a Microsoft Account, Live ID, Yahoo, Gmail, etc., or you are required to sign in with multi-factor authentication, leave the password field blank. You are prompted for a password after clicking Next. 
 
-    ![Screenshot that shows Connect to Database Server screen in Data Connection Wizard](./media/analysis-services-connect-excel/aas-connect-excel-logon.png)
+    ![Screenshot that shows Connect to Database Server screen in Data Connection Wizard.](./media/analysis-services-connect-excel/aas-connect-excel-logon.png)
 
 3. In **Select Database and Table**, select the database and model or perspective, and then click **Finish**.
 
-    ![Screenshot that shows selecting a model in Data Connection Wizard](./media/analysis-services-connect-excel/aas-connect-excel-select.png)
+    ![Screenshot that shows selecting a model in Data Connection Wizard.](./media/analysis-services-connect-excel/aas-connect-excel-select.png)
 
 
 ## See also

articles/analysis-services/analysis-services-connect-pbi.md

@@ -34,7 +34,7 @@ After you've created a server in Azure and deployed a tabular model to it, users
 
 5. When prompted to enter your credentials, select **Microsoft account**, and then click **Sign in**. 
 
-    :::image type="content" source="media/analysis-services-connect-pbi/aas-sign-in.png" alt-text="Screen showing Sign in to Azure Analysis Services":::
+    :::image type="content" source="media/analysis-services-connect-pbi/aas-sign-in.png" alt-text="Screenshot showing Sign in to Azure Analysis Services.":::
 
    > [!NOTE]
    > Windows and Basic authentication are not supported. 

articles/analysis-services/analysis-services-create-sample-model.md

@@ -36,15 +36,15 @@ Sign in to the [portal](https://portal.azure.com/).
 
 1. In server **Overview**, click **New model**.
 
-    ![Screen showing New model button](./media/analysis-services-create-sample-model/aas-create-sample-new-model.png)
+    ![Screen showing New model button.](./media/analysis-services-create-sample-model/aas-create-sample-new-model.png)
 
 2. In **New model** > **Choose a data source**,  verify **Sample data** is selected, and then click **Add**.
 
-    ![Screen showing New model dialog](./media/analysis-services-create-sample-model/aas-create-sample-data.png)
+    ![Screen showing New model dialog.](./media/analysis-services-create-sample-model/aas-create-sample-data.png)
 
 3. In **Overview**, verify the `adventureworks` sample model is added.
 
-    ![Screen showing new model on the server](./media/analysis-services-create-sample-model/aas-create-sample-verify.png)
+    ![Screen showing new model on the server.](./media/analysis-services-create-sample-model/aas-create-sample-verify.png)
 
 
 ## Clean up resources