update readme file

README.md

@@ -1,10 +1,23 @@
-# Projector Addon for Blender
-P.S. Germans like to call a projektor, a beamer.
+# Projector Add-on for Blender
+Simple projector creation and modification for [Blender](https://www.blender.org/).
 
-## Installation
+## What this Add-on can do for you
+* easy creation and modification of physically based projectors
+* real world projector settings like **throw ratio**, **resolution** and **lens shift**
+* project test textures or your own content like images and videos
+* preview the projections in Cycles render mode (Eevee will be supported when the needed functionality is implemented) 
+
+## Note
+* works only with Blender 2.8
 
+## Installation
 * Download the repo by clicking "Clone or download" and then download as ZIP (don't unpack the file on your computer).
 * Open Blender 2.8.
 * Go to the User Preferences in the Addon tab.
 * Click Install from File and choose the zip file you downloaded.
 * Activate the add-on by clicking on the checkbox.
+
+## Missing something?
+I'm interested and open for suggestions. Let me know how you use the add-on and how it could improve. Open a issue or message me.
+
+P.S. Germans like to call a projector, a beamer.