Added remarks to better qualify what setting the culture actually does.

src/Spectre.Console.Cli/ConfiguratorExtensions.cs

@@ -47,6 +47,12 @@ public static IConfigurator SetHelpProvider<T>(this IConfigurator configurator)
     /// <param name="configurator">The configurator.</param>
     /// <param name="culture">The culture.</param>
     /// <returns>A configurator that can be used to configure the application further.</returns>
+    /// <remarks>
+    /// Text displayed by <see cref="Help.HelpProvider"/> can be localised, but defaults to English.
+    /// Setting the application culture informs the resource manager which culture to use when fetching strings.
+    /// English will be used when a culture has not been specified
+    /// or a string has not been localised for the specified culture.
+    /// </remarks>
     public static IConfigurator SetApplicationCulture(this IConfigurator configurator, CultureInfo culture)
     {
         if (configurator == null)