Update articles/imagesharp/imageformats.md

Co-authored-by: Brian Popow <38701097+brianpopow@users.noreply.github.com>

articles/imagesharp/imageformats.md

@@ -39,7 +39,7 @@ using (var image = Image.Load(inputStream, out format))
 - `image.SaveAsPng()` (shortcut for `image.Save(new PngEncoder())`)
 - `image.SaveAsTga()` (shortcut for `image.Save(new TgaEncoder())`)
 - `image.SaveAsTiff()` (shortcut for `image.Save(new TiffEncoder())`)
-
+- `image.SaveAsWebp()` (shortcut for `image.Save(new WebpEncoder())`)
 ### A Deeper Overview of ImageSharp Format Management
 
 Real life image streams are usually stored / transferred in standardized formats like Jpeg, Png, Bmp, Gif etc. An image format is represented by an [`IImageFormat`](xref:SixLabors.ImageSharp.Formats.IImageFormat) implementation.