RunAsync waits for hosted services to stop (#7954)

Author: pedrobsaila

xml/Microsoft.Extensions.Hosting/HostingAbstractionsHostExtensions.xml

@@ -50,7 +50,7 @@
       </Parameters>
       <Docs>
         <param name="host">The <see cref="T:Microsoft.Extensions.Hosting.IHost" /> to run.</param>
-        <summary>Runs an application and blocks the calling thread until host shutdown.</summary>
+        <summary>Runs an application and blocks the calling thread until host shutdown is triggered and all <see cref="T:Microsoft.Extensions.Hosting.IHostedService" /> instances are stopped.</summary>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>
@@ -87,7 +87,7 @@
       <Docs>
         <param name="host">The <see cref="T:Microsoft.Extensions.Hosting.IHost" /> to run.</param>
         <param name="token">The token to trigger shutdown.</param>
-        <summary>Runs an application and returns a Task that only completes when the token is triggered or shutdown is triggered.</summary>
+        <summary>Runs an application and returns a Task that only completes when the token is triggered or shutdown is triggered and all <see cref="T:Microsoft.Extensions.Hosting.IHostedService" /> instances are stopped.</summary>
         <returns>The <see cref="T:System.Threading.Tasks.Task" /> that represents the asynchronous operation.</returns>
         <remarks>To be added.</remarks>
       </Docs>