Tweaked the docs a bit more

docs/en/SkiaSharp/SKSurface.xml

@@ -37,20 +37,21 @@
     // Configure our brush
     var redBrush = new SKPaint () {
         Color = new SKColor (0xff, 0, 0),
-	IsStroke = true
+        IsStroke = true
     };
     var blueBrush = new SKPaint () {
         Color = new SKColor (0, 0, 0xff),
-	IsStroke = true
+        IsStroke = true
     };
 
     for (int i = 0; i < 64; i += 8)
         canvas.DrawRect (new SKRect (i, i, 256-i, 256-i), (i % 16 == 0) ? redBrush : blueBrush);
 
     // Save the artwork
-    using (var output = File.OpenWrite ("demo.png"))
-    {
-        surface.Snapshot().Encode().SaveTo(output);
+    using (var image = surface.Snapshot ())
+    using (var data = image.Encode ())
+    using (var output = File.OpenWrite ("demo.png")) {
+        data.SaveTo(output);
     }
 }
 ]]></code>