Update readme.md with examples

readme.md

@@ -8,8 +8,8 @@ A [Blurhash](https://github.com/woltapp/blurhash) implementation based on
 [blurhash.net](https://github.com/MarkusPalcer/blurhash.net) for SkiaSharp, thus
 fully available for Xamarin and other .NET Standard 2.0 platforms.
 
-Currently allows to decode a blurhash into `SKBitmap`. Creation of blurhash from
-images is not supported as of 1.0.
+Currently allows to decode a blurhash into `SKBitmap` or encode a `SKBitmap`
+into Blurhash string.
 
 Several portions of the code are directly copy-pasted from the [System.Drawing
 implementation](https://github.com/MarkusPalcer/blurhash.net/tree/master/Blurhash-System.Drawing).
@@ -21,13 +21,31 @@ Tested on Xamarin.Forms on UWP, iOS and Android.
 ### Displaying a placeholder for an image in Xamarin.Forms Image control
 
 ```csharp
-// ...
+// decode blurhash instring into a SKBitmap
+var im = Blurhash.SkiaSharp.Blurhasher.Decode("LEHV6nWB2yk8pyo0adR*.7kCMdnj", 219, 176);
 
-var decoder = new Blurhash.SkiaSharp.Decoder();
-var im = decoder.Decode("LEHV6nWB2yk8pyo0adR*.7kCMdnj", 219, 176);
+// load it into a SKImage
 var data = SKImage.FromBitmap(im).Encode();
 
+// use as a source for Image control
 image1.Source = ImageSource.FromStream(data.AsStream);
 ```
 
+### Encoding an resource image into a Blurhash string
+
+```csharp
+// get the image from resources
+var stream = Assembly.GetExecutingAssembly().GetManifestResourceStream("TestMobileApp.noah.jpg");
+
+// load to SKImage and to Image control
+var img = SKImage.FromEncodedData(stream);
+image1.Source = ImageSource.FromFile("noah.jpg");
+
+// create SKBitmap from Image and create a blurhash for it
+var hash = Blurhash.SkiaSharp.Blurhasher.Encode(SKBitmap.FromImage(img), 4, 3);
+
+// and show it in a Editor control
+editor1.Text = hash;
+```
+
 ![Example of Xamarin.Forms image with Blurhash switching to loaded image](https://raw.githubusercontent.com/ktos/Blurhash.SkiaSharp/master/ex1.gif)