Fallback to relative path for title and navigation title

Author: Mpdreamz

docs/source/docset.yml

@@ -45,4 +45,5 @@ toc:
     children:
       - folder: content
       - file: index.md
+      - file: test.md
   - folder: versioning

src/Elastic.Markdown/IO/MarkdownFile.cs

@@ -72,6 +72,11 @@ private void ReadDocumentInstructions(MarkdownDocument document)
 			Title = YamlFrontMatter.Title;
 			NavigationTitle = YamlFrontMatter.NavigationTitle;
 		}
+		else
+		{
+			Title = RelativePath;
+			NavigationTitle = RelativePath;
+		}
 
 		var contents = document
 			.Where(block => block is HeadingBlock { Level: 2 })

src/docs-builder/Http/ReloadGeneratorService.cs

@@ -66,6 +66,8 @@ private void OnChanged(object sender, FileSystemEventArgs e)
 
 		if (e.FullPath.EndsWith("docset.yml"))
 			Reload();
+		if (e.FullPath.EndsWith(".md"))
+			Reload();
 
 		Logger.LogInformation($"Changed: {e.FullPath}");
 	}