update label tool instructions

Author: laujan

articles/applied-ai-services/form-recognizer/media/label-tool/fott-select-url.png

@@ -75,7 +75,9 @@ Form Recognizer offers several prebuilt models to choose from. Each model has it
     * [**Sample receipt image**](https://raw.githubusercontent.com/Azure-Samples/cognitive-services-REST-api-samples/master/curl/form-recognizer/contoso-allinone.jpg).
     * [**Sample business card image**](https://raw.githubusercontent.com/Azure/azure-sdk-for-python/master/sdk/formrecognizer/azure-ai-formrecognizer/samples/sample_forms/business_cards/business-card-english.jpg).
 
-1. In the **Source: URL** field, paste the selected URL and select the **Fetch** button.
+1. In the **Source** field, select **URL** from the dropdown menu, paste the selected URL, and select the **Fetch** button.
+
+    :::image type="content" source="../media/label-tool/fott-select-url.png" alt-text="{alt-text}":::
 
 1. In the **Form recognizer service endpoint** field, paste the endpoint that you obtained with your Form Recognizer subscription.
 
@@ -110,7 +112,7 @@ Azure the Form Recognizer Layout API extracts text, tables, selection marks, and
 
 1. In the **key** field, paste  the key you obtained from your Form Recognizer resource.
 
-1. In the **Source: URL** field, paste the following URL `https://raw.githubusercontent.com/Azure-Samples/cognitive-services-REST-api-samples/master/curl/form-recognizer/layout-page-001.jpg`  and select the **Fetch** button.
+1. In the **Source** field, select **URL** from the dropdown menu, paste the following URL `https://raw.githubusercontent.com/Azure-Samples/cognitive-services-REST-api-samples/master/curl/form-recognizer/layout-page-001.jpg`, and select the **Fetch** button.
 
 1. Select **Run Layout**. The Form Recognizer Sample Labeling tool will call the Analyze Layout API and analyze the document.