Rename .NET folder to DotNet

DotNet/Lib/SkiaSharp.md

@@ -0,0 +1,35 @@
+# SkiaSharp
+
+```cs
+SKImageInfo info = new SKImageInfo(width, height);
+
+using (SKSurface surface = SKSurface.Create(info))
+{
+    SKCanvas canvas = surface.Canvas;
+    canvas.DrawColor(SKColors.<color>);
+
+    using (SKPaint paint = new SKPaint())
+    {
+        paint.Color = SKColors.Blue;
+        paint.IsAntialias = true;
+        paint.StrokeWidth = 5;
+        paint.Style = SKPaintStyle.Stroke;
+
+        // draw
+        canvas.DrawLine(x0, y0, x1, y1, paint);
+
+    }
+
+    // save to file
+    using (var image = surface.Snapshot())
+    {
+        using (var data = image.Encode(SKEncodedImageFormat.Png, 100))
+        {
+            using (var stream = File.OpenWrite(png_filename))
+            {
+                data.SaveTo(stream);
+            }
+        }
+    }
+}
+```