Add XML docs to core packages

src/Microsoft.AspNetCore.SpaServices/Prerendering/Prerenderer.cs

@@ -4,6 +4,9 @@ using Microsoft.AspNetCore.NodeServices;
 
 namespace Microsoft.AspNetCore.SpaServices.Prerendering
 {
+    /// <summary>
+    /// Performs server-side prerendering by invoking code in Node.js.
+    /// </summary>
     public static class Prerenderer
     {
         private static readonly Lazy<StringAsTempFile> NodeScript;
@@ -17,6 +20,17 @@ namespace Microsoft.AspNetCore.SpaServices.Prerendering
             });
         }
 
+        /// <summary>
+        /// Performs server-side prerendering by invoking code in Node.js.
+        /// </summary>
+        /// <param name="applicationBasePath">The root path to your application. This is used when resolving project-relative paths.</param>
+        /// <param name="nodeServices">The instance of <see cref="INodeServices"/> that will be used to invoke JavaScript code.</param>
+        /// <param name="bootModule">The path to the JavaScript file containing the prerendering logic.</param>
+        /// <param name="requestAbsoluteUrl">The URL of the currently-executing HTTP request. This is supplied to the prerendering code.</param>
+        /// <param name="requestPathAndQuery">The path and query part of the URL of the currently-executing HTTP request. This is supplied to the prerendering code.</param>
+        /// <param name="customDataParameter">An optional JSON-serializable parameter to be supplied to the prerendering code.</param>
+        /// <param name="timeoutMilliseconds">The maximum duration to wait for prerendering to complete.</param>
+        /// <returns></returns>
         public static Task<RenderToStringResult> RenderToString(
             string applicationBasePath,
             INodeServices nodeServices,