Fixed toc html header on no heading option

Author: chrPetry

AzureDevOps.WikiPDFExport/WikiPDFExporter.cs

@@ -447,6 +447,7 @@ private string ConvertMarkdownToHTML(List<MarkdownFile> files)
                 var contents = files.Select(x => x.Content).ToList();
                 var tocContent = CreateGlobalTableOfContent(contents);
                 var tocString = string.Join("\n", tocContent);
+
                 var tocMarkdownFile = new MarkdownFile { AbsolutePath = tocMDFilePath, Level = 0, RelativePath = relativePath, Content = tocString };
                 files.Insert(0, tocMarkdownFile);
             }
@@ -548,6 +549,13 @@ private string ConvertMarkdownToHTML(List<MarkdownFile> files)
                     html = heading + html;
                 }
 
+
+                if (!string.IsNullOrEmpty(_options.GlobalTOC) && i == 0 && !_options.Heading)
+                {
+                    var heading = $"<h1>{_options.GlobalTOC}</h1>";
+                    html = heading + html;
+                }
+
                 if (_options.Heading)
                 {
                     var filename = file.Name.Replace(".md", "");