Added text overlay example to readme

README.md

@@ -70,6 +70,13 @@ Texture arrays allow storing of multiple images in different layers without any
 This example demonstrates the use of a 2D texture array with instanced rendering. Each instance samples from a different layer of the texture array.
 <br><br>
 
+## [Text overlay (Multi pass)](textoverlay/)
+<img src="./screenshots/textoverlay.png" height="96px" align="right" style="border:2px solid white; outline:2px solid black;">
+
+Renders a 2D text overlay on top of an existing 3D scene. The example implements a text overlay class with separate descriptor sets, layouts, pipelines and render pass to detach it from the rendering of the scene. The font is generated by loading glyph data from a [stb font file](http://nothings.org/stb/font/) into a buffer that's copied to the font image.
+
+After rendering the scene, the second render pass of the text overlay class loads the contents of the first render pass and displays text on top of it using blending.
+
 ## [Distance field fonts](distancefieldfonts/)
 <img src="./screenshots/font_distancefield.png" height="96px" align="right">