Updated Home (markdown)

Home.md

@@ -65,6 +65,31 @@ byte[] b = builder.Build();
 
 The resulting bytes are a valid PDF document and can be saved to the file system, served from a web server, etc.
 
+You can use document builder to visualise what pdf pig has done for document reading.
+```cs
+using UglyToad.PdfPig;
+using UglyToad.PdfPig.Writer;
+
+ using (var document = PdfDocument.Open(pdf))
+ {
+    var builder = new PdfDocumentBuilder{};
+    var pageBuilder = builder.AddPage(document, pageNumber);
+    pageBuilder.SetStrokeColor(255,0,0);
+    var page = document.GetPage(pageNumber);
+    foreach(var word in page.GetWords())
+    {
+         var box = word.BoundingBox;
+         pageBuilder.DrawRectangle(box.BottomLeft, (decimal)box.Width, (decimal)box.Height);
+    }
+    
+    builder.ToImage().Display();
+ }
+```
+
+View this gist that goes through some basic beginner examples: https://gist.github.com/cordasfilip/c6d2510b358323dc2f71c843460cbcdf
+
+
+
 ## Contents ##
 
 More details on the API can be found here.