fix broken link (#21329)

Author: maririos

sdk/formrecognizer/Azure.AI.FormRecognizer/README.md

@@ -646,7 +646,7 @@ This project has adopted the [Microsoft Open Source Code of Conduct][code_of_con
 [regional_endpoints]: https://docs.microsoft.com/azure/cognitive-services/cognitive-services-custom-subdomains#is-there-a-list-of-regional-endpoints
 
 
-[labeling_tool]: https://docs.microsoft.com/azure/cognitive-services/form-recognizer/quickstarts/label-tool
+[labeling_tool]: https://docs.microsoft.com/azure/cognitive-services/form-recognizer/label-tool?tabs=v2-1
 [service_recognize_receipt_fields]: https://aka.ms/formrecognizer/receiptfields
 [service_recognize_business_cards_fields]: https://aka.ms/formrecognizer/businesscardfields
 [service_recognize_invoices_fields]: https://aka.ms/formrecognizer/invoicefields

sdk/formrecognizer/Azure.AI.FormRecognizer/samples/Sample5_TrainModel.md

@@ -70,7 +70,7 @@ Train custom models to recognize specific fields and values you specify by label
 // https://docs.microsoft.com/azure/cognitive-services/form-recognizer/build-training-data-set#upload-your-training-data
 
 // For instructions to create a label file for your training forms, please see:
-// https://docs.microsoft.com/azure/cognitive-services/form-recognizer/quickstarts/label-tool
+// https://docs.microsoft.com/azure/cognitive-services/form-recognizer/label-tool?tabs=v2-1
 
 Uri trainingFileUri = <trainingFileUri>;
 string modelName = "My Model with labels";
@@ -109,4 +109,4 @@ To see the full example source files, see:
 * [Train a model with forms and labels](https://github.com/Azure/azure-sdk-for-net/blob/master/sdk/formrecognizer/Azure.AI.FormRecognizer/tests/samples/Sample6_TrainModelWithFormsAndLabels.cs)
 
 [README]: https://github.com/Azure/azure-sdk-for-net/tree/master/sdk/formrecognizer/Azure.AI.FormRecognizer#getting-started
-[labeling_tool]: https://docs.microsoft.com/azure/cognitive-services/form-recognizer/quickstarts/label-tool
+[labeling_tool]: https://docs.microsoft.com/azure/cognitive-services/form-recognizer/label-tool?tabs=v2-1

sdk/formrecognizer/Azure.AI.FormRecognizer/samples/Sample8_ModelCompose.md

@@ -149,4 +149,4 @@ To see the full example source files, see:
 * [Composed Model](https://github.com/Azure/azure-sdk-for-net/blob/master/sdk/formrecognizer/Azure.AI.FormRecognizer/tests/samples/Sample11_ComposedModel.cs)
 
 [README]: https://github.com/Azure/azure-sdk-for-net/tree/master/sdk/formrecognizer/Azure.AI.FormRecognizer#getting-started
-[labeling_tool]: https://docs.microsoft.com/azure/cognitive-services/form-recognizer/quickstarts/label-tool
+[labeling_tool]: https://docs.microsoft.com/azure/cognitive-services/form-recognizer/label-tool?tabs=v2-1

sdk/formrecognizer/Azure.AI.FormRecognizer/tests/Infrastructure/DisposableTrainedModel.cs

@@ -16,7 +16,7 @@ namespace Azure.AI.FormRecognizer.Tests
     /// <remarks>
     /// Please note that models can also be trained using a graphical user interface
     /// such as the Form Recognizer Labeling Tool found here:
-    /// <see href="https://docs.microsoft.com/azure/cognitive-services/form-recognizer/quickstarts/label-tool"/>.
+    /// <see href="https://docs.microsoft.com/azure/cognitive-services/form-recognizer/label-tool?tabs=v2-1"/>.
     /// </remarks>
     public class DisposableTrainedModel : IAsyncDisposable
     {

sdk/formrecognizer/Azure.AI.FormRecognizer/tests/samples/Sample2_RecognizeCustomFormsFromFile.cs

@@ -24,7 +24,7 @@ public async Task RecognizeCustomFormsFromFile()
             // Firstly, create a trained model we can use to recognize the custom form. Please note that
             // models can also be trained using a graphical user interface such as the Form Recognizer
             // Labeling Tool found here:
-            // https://docs.microsoft.com/azure/cognitive-services/form-recognizer/quickstarts/label-tool
+            // https://docs.microsoft.com/azure/cognitive-services/form-recognizer/label-tool?tabs=v2-1
 
             FormTrainingClient trainingClient = new FormTrainingClient(new Uri(endpoint), new AzureKeyCredential(apiKey));
             CustomFormModel model = await trainingClient.StartTrainingAsync(new Uri(trainingFileUrl), useTrainingLabels: false, "My Model").WaitForCompletionAsync();

sdk/formrecognizer/Azure.AI.FormRecognizer/tests/samples/Sample2_RecognizeCustomFormsFromUri.cs

@@ -23,7 +23,7 @@ public async Task RecognizeCustomFormsFromUri()
             // Firstly, create a trained model we can use to recognize the custom form. Please note that
             // models can also be trained using a graphical user interface such as the Form Recognizer
             // Labeling Tool found here:
-            // https://docs.microsoft.com/azure/cognitive-services/form-recognizer/quickstarts/label-tool
+            // https://docs.microsoft.com/azure/cognitive-services/form-recognizer/label-tool?tabs=v2-1
 
             FormTrainingClient trainingClient = new FormTrainingClient(new Uri(endpoint), new AzureKeyCredential(apiKey));
             CustomFormModel model = await trainingClient.StartTrainingAsync(new Uri(trainingFileUrl), useTrainingLabels: false, "My Model").WaitForCompletionAsync();

sdk/formrecognizer/Azure.AI.FormRecognizer/tests/samples/Sample6_TrainModelWithFormsAndLabels.cs

@@ -25,7 +25,7 @@ public async Task TrainModelWithFormsAndLabels()
             // https://docs.microsoft.com/azure/cognitive-services/form-recognizer/build-training-data-set#upload-your-training-data
 
             // For instructions to create a label file for your training forms, please see:
-            // https://docs.microsoft.com/azure/cognitive-services/form-recognizer/quickstarts/label-tool
+            // https://docs.microsoft.com/azure/cognitive-services/form-recognizer/label-tool?tabs=v2-1
 
 #if SNIPPET
             Uri trainingFileUri = <trainingFileUri>;