Replace legacy Code Gallery link with new Samples browser (dotnet#4166)

* Replace legacy Code Gallery link with new Samples browser

* Corrected link, using aka.ms to encapsulate query string.

* Fix & usage

Author: IEvangelist

xml/System.Threading.Tasks/Parallel.xml

@@ -49,7 +49,7 @@
     </remarks>
     <threadsafe>All public and protected members of <see cref="T:System.Threading.Tasks.Parallel" /> are thread-safe and may be used concurrently from multiple threads.</threadsafe>
     <related type="Article" href="~/docs/standard/parallel-programming/data-parallelism-task-parallel-library.md">Data Parallelism (Task Parallel Library)</related>
-    <related type="ExternalDocumentation" href="https://code.msdn.microsoft.com/Samples-for-Parallel-b4b76364">Samples for Parallel Programming with the .NET Framework</related>
+    <related type="ExternalDocumentation" href="https://aka.ms/dotnet-parallel-samples">Samples for Parallel Programming with the .NET Core and .NET Standard</related>
   </Docs>
   <Members>
     <MemberGroup MemberName="For">

xml/System.Threading.Tasks/Task.xml

@@ -165,7 +165,7 @@
     <altmember cref="T:System.Threading.Tasks.Task`1" />
     <related type="Article" href="~/docs/standard/parallel-programming/task-parallel-library-tpl.md">Task Parallel Library (TPL)</related>
     <related type="Article" href="~/docs/standard/parallel-programming/task-based-asynchronous-programming.md">Task-based Asynchronous Programming</related>
-    <related type="ExternalDocumentation" href="https://code.msdn.microsoft.com/Samples-for-Parallel-b4b76364">Samples for Parallel Programming with the .NET Framework</related>
+    <related type="ExternalDocumentation" href="https://aka.ms/dotnet-parallel-samples">Samples for Parallel Programming with the .NET Core and .NET Standard</related>
   </Docs>
   <Members>
     <MemberGroup MemberName=".ctor">

xml/System.Threading.Tasks/TaskCreationOptions.xml

@@ -66,7 +66,7 @@
   
  ]]></format>
     </remarks>
-    <related type="ExternalDocumentation" href="https://code.msdn.microsoft.com/Samples-for-Parallel-b4b76364">Samples for Parallel Programming with the .NET Framework</related>
+    <related type="ExternalDocumentation" href="https://aka.ms/dotnet-parallel-samples">Samples for Parallel Programming with the .NET Core and .NET Standard</related>
   </Docs>
   <Members>
     <Member MemberName="AttachedToParent">

xml/System.Threading.Tasks/TaskFactory.xml

@@ -83,7 +83,7 @@
     </remarks>
     <threadsafe>All public and protected members of <see cref="T:System.Threading.Tasks.TaskFactory" /> are thread-safe and may be used concurrently from multiple threads.</threadsafe>
     <related type="Article" href="~/docs/standard/parallel-programming/task-parallel-library-tpl.md">Task Parallel Library (TPL)</related>
-    <related type="ExternalDocumentation" href="https://code.msdn.microsoft.com/Samples-for-Parallel-b4b76364">Samples for Parallel Programming with the .NET Framework</related>
+    <related type="ExternalDocumentation" href="https://aka.ms/dotnet-parallel-samples">Samples for Parallel Programming with the .NET Core and .NET Standard</related>
   </Docs>
   <Members>
     <MemberGroup MemberName=".ctor">
@@ -456,7 +456,7 @@
       </AssemblyInfo>
       <Docs>
         <summary>Creates a continuation task that starts when a set of specified tasks has completed.</summary>
-        <related type="ExternalDocumentation" href="https://code.msdn.microsoft.com/Samples-for-Parallel-b4b76364">Samples for Parallel Programming with the .NET Framework</related>
+        <related type="ExternalDocumentation" href="https://aka.ms/dotnet-parallel-samples">Samples for Parallel Programming with the .NET Core and .NET Standard</related>
       </Docs>
     </MemberGroup>
     <Member MemberName="ContinueWhenAll">
@@ -1586,7 +1586,7 @@ The NotOn\* and OnlyOn\* <xref:System.Threading.Tasks.TaskContinuationOptions>,
         <related type="Article" href="~/docs/standard/parallel-programming/task-parallel-library-tpl.md">Task Parallel Library (TPL)</related>
         <related type="Article" href="~/docs/standard/parallel-programming/chaining-tasks-by-using-continuation-tasks.md">Chaining Tasks by Using Continuation Tasks</related>
         <related type="Article" href="~/docs/standard/parallel-programming/task-cancellation.md">Task Cancellation</related>
-        <related type="ExternalDocumentation" href="https://code.msdn.microsoft.com/Samples-for-Parallel-b4b76364">Samples for Parallel Programming with the .NET Framework</related>
+        <related type="ExternalDocumentation" href="https://aka.ms/dotnet-parallel-samples">Samples for Parallel Programming with the .NET Core and .NET Standard</related>
       </Docs>
     </MemberGroup>
     <Member MemberName="ContinueWhenAny">
@@ -4458,7 +4458,7 @@ The NotOn\* and OnlyOn\* <xref:System.Threading.Tasks.TaskContinuationOptions>,
   
  ]]></format>
         </remarks>
-        <related type="ExternalDocumentation" href="https://code.msdn.microsoft.com/Samples-for-Parallel-b4b76364">Samples for Parallel Programming with the .NET Framework</related>
+        <related type="ExternalDocumentation" href="https://aka.ms/dotnet-parallel-samples">Samples for Parallel Programming with the .NET Core and .NET Standard</related>
       </Docs>
     </MemberGroup>
     <Member MemberName="StartNew">

xml/System.Threading.Tasks/Task`1.xml

@@ -82,7 +82,7 @@ For operations that do not return a value, you use the <xref:System.Threading.Ta
     <altmember cref="T:System.Threading.Tasks.Task" />
     <related type="Article" href="~/docs/standard/parallel-programming/task-parallel-library-tpl.md">Task Parallel Library (TPL)</related>
     <related type="Article" href="~/docs/standard/parallel-programming/task-based-asynchronous-programming.md">Task-based Asynchronous Programming</related>
-    <related type="ExternalDocumentation" href="https://code.msdn.microsoft.com/Samples-for-Parallel-b4b76364">Samples for Parallel Programming with the .NET Framework</related>
+    <related type="ExternalDocumentation" href="https://aka.ms/dotnet-parallel-samples">Samples for Parallel Programming with the .NET Core and .NET Standard</related>
   </Docs>
   <Members>
     <MemberGroup MemberName=".ctor">