Reference langword null on navigation

Author: RenderMichael

dotnet/src/webdriver/INavigation.cs

@@ -66,15 +66,15 @@ public interface INavigation
         /// should the underlying page change while your test is executing the results of
         /// future calls against this interface will be against the freshly loaded page.
         /// </remarks>
-        /// <exception cref="ArgumentNullException">If <paramref name="url"/> is null.</exception>
+        /// <exception cref="ArgumentNullException">If <paramref name="url"/> is <see langword="null"/>.</exception>
         void GoToUrl(string url);
 
         /// <summary>
         /// Navigate to a url as an asynchronous task.
         /// </summary>
         /// <param name="url">String of where you want the browser to go.</param>
         /// <returns>A task object representing the asynchronous operation.</returns>
-        /// <exception cref="ArgumentNullException">If <paramref name="url"/> is null.</exception>
+        /// <exception cref="ArgumentNullException">If <paramref name="url"/> is <see langword="null"/>.</exception>
         Task GoToUrlAsync(string url);
 
         /// <summary>
@@ -90,15 +90,15 @@ public interface INavigation
         /// should the underlying page change while your test is executing the results of
         /// future calls against this interface will be against the freshly loaded page.
         /// </remarks>
-        /// <exception cref="ArgumentNullException">If <paramref name="url"/> is null.</exception>
+        /// <exception cref="ArgumentNullException">If <paramref name="url"/> is <see langword="null"/>.</exception>
         void GoToUrl(Uri url);
 
         /// <summary>
         /// Navigate to a url as an asynchronous task.
         /// </summary>
         /// <param name="url">Uri object of where you want the browser to go.</param>
         /// <returns>A task object representing the asynchronous operation.</returns>
-        /// <exception cref="ArgumentNullException">If <paramref name="url"/> is null.</exception>
+        /// <exception cref="ArgumentNullException">If <paramref name="url"/> is <see langword="null"/>.</exception>
         Task GoToUrlAsync(Uri url);
 
         /// <summary>

dotnet/src/webdriver/Navigator.cs

@@ -86,7 +86,7 @@ public async Task ForwardAsync()
         /// Navigate to a url.
         /// </summary>
         /// <param name="url">String of where you want the browser to go to</param>
-        /// <exception cref="ArgumentNullException">If <paramref name="url"/> is null.</exception>
+        /// <exception cref="ArgumentNullException">If <paramref name="url"/> is <see langword="null"/>.</exception>
         public void GoToUrl(string url)
         {
             Task.Run(async delegate
@@ -100,7 +100,7 @@ public void GoToUrl(string url)
         /// </summary>
         /// <param name="url">String of where you want the browser to go.</param>
         /// <returns>A task object representing the asynchronous operation.</returns>
-        /// <exception cref="ArgumentNullException">If <paramref name="url"/> is null.</exception>
+        /// <exception cref="ArgumentNullException">If <paramref name="url"/> is <see langword="null"/>.</exception>
         public async Task GoToUrlAsync(string url)
         {
             if (url == null)
@@ -119,7 +119,7 @@ public async Task GoToUrlAsync(string url)
         /// Navigate to a url.
         /// </summary>
         /// <param name="url">Uri object of where you want the browser to go.</param>
-        /// <exception cref="ArgumentNullException">If <paramref name="url"/> is null.</exception>
+        /// <exception cref="ArgumentNullException">If <paramref name="url"/> is <see langword="null"/>.</exception>
         public void GoToUrl(Uri url)
         {
             Task.Run(async delegate
@@ -133,7 +133,7 @@ public void GoToUrl(Uri url)
         /// </summary>
         /// <param name="url">Uri object of where you want the browser to go.</param>
         /// <returns>A task object representing the asynchronous operation.</returns>
-        /// <exception cref="ArgumentNullException">If <paramref name="url"/> is null.</exception>
+        /// <exception cref="ArgumentNullException">If <paramref name="url"/> is <see langword="null"/>.</exception>
         public async Task GoToUrlAsync(Uri url)
         {
             if (url == null)