Update advertising of landing-page-path

Author: Mpdreamz

src/Elastic.Markdown/IO/DocumentationSet.cs

@@ -329,6 +329,8 @@ void ValidateExists(string from, string to, IReadOnlyDictionary<string, string?>
 
 	public FrozenSet<MarkdownFile> MarkdownFiles { get; }
 
+	public string FirstInterestingUrl => NavigationIndexedByOrder.Values.OfType<FileNavigationItem>().First().Url;
+
 	public DocumentationFile? DocumentationFileLookup(IFileInfo sourceFile)
 	{
 		var relativePath = Path.GetRelativePath(SourceDirectory.FullName, sourceFile.FullName);
@@ -377,15 +379,17 @@ public RepositoryLinks CreateLinkReference()
 	{
 		var redirects = Configuration.Redirects;
 		var crossLinks = Context.Collector.CrossLinks.ToHashSet().ToArray();
-		var links = MarkdownFiles
-			.Select(m => (m.LinkReferenceRelativePath, File: m))
+		var links = NavigationIndexedByOrder
+			.Select(kv => kv.Value)
+			.OfType<FileNavigationItem>()
+			.Select(m => (m.Model.LinkReferenceRelativePath, Navigation: m))
 			.ToDictionary(k => RuntimeInformation.IsOSPlatform(OSPlatform.Windows)
 			? k.LinkReferenceRelativePath.Replace('\\', '/')
 			: k.LinkReferenceRelativePath, v =>
 			{
-				var anchors = v.File.Anchors.Count == 0 ? null : v.File.Anchors.ToArray();
-				var nav = ((IPositionalNavigation)this).GetCurrent(v.File);
-				return new LinkMetadata { Anchors = anchors, Hidden = nav.Hidden };
+				var md = v.Navigation.Model;
+				var anchors = md.Anchors.Count == 0 ? null : md.Anchors.ToArray();
+				return new LinkMetadata { Anchors = anchors, Hidden = v.Navigation.Hidden };
 			});
 
 		return new RepositoryLinks

src/tooling/docs-builder/Cli/Commands.cs

@@ -162,7 +162,7 @@ public async Task<int> Generate(
 		await openApiGenerator.Generate(ctx);
 
 		if (runningOnCi)
-			await githubActionsService.SetOutputAsync("landing-page-path", set.MarkdownFiles.First().Url);
+			await githubActionsService.SetOutputAsync("landing-page-path", set.FirstInterestingUrl);
 
 		await collector.StopAsync(ctx);
 		if (bool.TryParse(githubActionsService.GetInput("strict"), out var strictValue) && strictValue)