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Linear-Gradient.md

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-TODO
+The linear gradient is one of the default gradients provided by CUE.NET.  
+It's based on a set of _GradientStops_. All values are calculated as interpolation between the two _GradientStops_ surrounding the requested point.  
+
+Using the linear gradient is quite easy. Just create a new instance of the _LinearGradient_-class and use an array of _GradientStops_ as constructor-parameter.  
+
+If you want to create a gradient to draw something like this.
+> The gradient is the adopted line from the bottom left to the top right corner represented by the white line in the image.  
+> Note that this direction-info is **not** included in the gradient!  
+
+<img src="https://upload.wikimedia.org/wikipedia/commons/2/27/Gradient.svg" width="128" height="128">
+
+you could use this code
+```C#
+GradientStop[] gradientStops =
+{
+    new GradientStop(0f, Color.Blue),
+    new GradientStop(1f, Color.Red)
+};
+LinearGradient blueToRedGradient = new LinearGradient(gradientStops);
+```