docs(adt): add link to samples (#12533)

sdk/digitaltwins/Azure.DigitalTwins.Core/src/Models/TelemetryOptions.cs

@@ -8,6 +8,9 @@ namespace Azure.DigitalTwins.Core.Models
     /// <summary>
     /// The additional information to be used when processing a telemetry request.
     /// </summary>
+    /// <remarks>
+    /// For more samples, see <see href="https://github.com/Azure/azure-sdk-for-net/tree/master/sdk/digitaltwins/Azure.DigitalTwins.Core/samples">our repo samples</see>.
+    /// </remarks>
     public class TelemetryOptions
     {
         /// <summary>

sdk/digitaltwins/Azure.DigitalTwins.Core/src/Queries/QueryChargeHelper.cs

@@ -21,6 +21,9 @@ public static class QueryChargeHelper
         /// <param name="page">The page that contains the query-charge header.</param>
         /// <param name="queryCharge">The query charge extracted from the header.</param>
         /// <returns>True if the header contains a query-charge field, otherwise false.</returns>
+        /// <remarks>
+        /// For more samples, see <see href="https://github.com/Azure/azure-sdk-for-net/tree/master/sdk/digitaltwins/Azure.DigitalTwins.Core/samples">our repo samples</see>.
+        /// </remarks>
         /// <code snippet="Snippet:DigitalTwinsSampleQueryTwinsWithQueryCharge">
         /// // This code snippet demonstrates how you could extract the query charges incurred when calling
         /// // the query API. It iterates over the response pages first to access to the query-charge header,

sdk/digitaltwins/Azure.DigitalTwins.Core/src/Serialization/BasicDigitalTwin.cs

@@ -8,6 +8,9 @@ namespace Azure.DigitalTwins.Core.Serialization
     /// <summary>
     /// An optional, helper class for deserializing a digital twin.
     /// </summary>
+    /// <remarks>
+    /// For more samples, see <see href="https://github.com/Azure/azure-sdk-for-net/tree/master/sdk/digitaltwins/Azure.DigitalTwins.Core/samples">our repo samples</see>.
+    /// </remarks>
     /// <example>
     /// Here's an example of  how to use the BasicDigitalTwin helper class to serialize and create a digital twin.
     ///

sdk/digitaltwins/Azure.DigitalTwins.Core/src/Serialization/BasicRelationship.cs

@@ -10,6 +10,9 @@ namespace Azure.DigitalTwins.Core.Serialization
     /// Although relationships have a user-defined schema, these properties should exist on every instance. This is
     /// useful to use as a base class to ensure your custom relationships have the necessary properties.
     /// </summary>
+    /// <remarks>
+    /// For more samples, see <see href="https://github.com/Azure/azure-sdk-for-net/tree/master/sdk/digitaltwins/Azure.DigitalTwins.Core/samples">our repo samples</see>.
+    /// </remarks>
     public class BasicRelationship
     {
         /// <summary>

sdk/digitaltwins/Azure.DigitalTwins.Core/src/Serialization/DigitalTwinMetadata.cs

@@ -10,6 +10,9 @@ namespace Azure.DigitalTwins.Core.Serialization
     /// An optional, helper class for deserializing a digital twin.
     /// The $metadata class on a <see cref="BasicDigitalTwin"/> and <see cref="ModelProperties"/>.
     /// </summary>
+    /// <remarks>
+    /// For more samples, see <see href="https://github.com/Azure/azure-sdk-for-net/tree/master/sdk/digitaltwins/Azure.DigitalTwins.Core/samples">our repo samples</see>.
+    /// </remarks>
     public class DigitalTwinMetadata
     {
         /// <summary>

sdk/digitaltwins/Azure.DigitalTwins.Core/src/Serialization/ModelProperties.cs

@@ -9,6 +9,9 @@ namespace Azure.DigitalTwins.Core.Serialization
     /// <summary>
     /// Properties on a digital twin that adhere to a specific model.
     /// </summary>
+    /// <remarks>
+    /// For more samples, see <see href="https://github.com/Azure/azure-sdk-for-net/tree/master/sdk/digitaltwins/Azure.DigitalTwins.Core/samples">our repo samples</see>.
+    /// </remarks>
     public class ModelProperties
     {
         /// <summary>

sdk/digitaltwins/Azure.DigitalTwins.Core/src/Serialization/UpdateOperationsUtility.cs

@@ -9,6 +9,9 @@ namespace Azure.DigitalTwins.Core.Serialization
     /// <summary>
     /// A utility to create the application/json-patch+json operations payload required for update operations.
     /// </summary>
+    /// <remarks>
+    /// For more samples, see <see href="https://github.com/Azure/azure-sdk-for-net/tree/master/sdk/digitaltwins/Azure.DigitalTwins.Core/samples">our repo samples</see>.
+    /// </remarks>
     /// <example>
     /// <code snippet="Snippet:DigitalTwinsSampleUpdateComponent">
     /// // Update Component1 by replacing the property ComponentProp1 value

sdk/digitaltwins/Azure.DigitalTwins.Core/src/Serialization/WritableProperty.cs

@@ -10,7 +10,12 @@ namespace Azure.DigitalTwins.Core.Serialization
     /// The ModelProperties dictionary on <see cref="DigitalTwinMetadata"/>.
     /// </summary>
     /// <remarks>
+    /// <para>
     /// A writable property is one that the service may request a change for from the device.
+    /// </para>
+    /// <para>
+    /// For more samples, see <see href="https://github.com/Azure/azure-sdk-for-net/tree/master/sdk/digitaltwins/Azure.DigitalTwins.Core/samples">our repo samples</see>.
+    /// </para>
     /// </remarks>
     public class WritableProperty
     {