Update README.md

Author: apdevelop

README.md

@@ -1,2 +1,13 @@
-# composition-rules-helper
-Simple desktop (C# .NET 4.0 / WPF) application for displaying and auto aligning 'composition rules' grids on top of processed images.
+# Composition Rules Helper
+Simple but useful Windows desktop application for displaying and auto aligning 'composition rules' grids on top of images. Can be used for artistic educational or creative purposes. 
+
+### Features
+* Displaying one of the selected composition grids (Thirds, Golden Ratio, Diagonal of Thirds and so on) in transparent window. 
+* Manual or automatic (supports right now Windows 7 Photo Viewer and OTOY Octane Render Standalone apps) resizing and aligning grid extents along borders of image.
+* Rotating and flipping selected grid.
+
+### Technologies
+Developed using MS Visual Studio 2010, C# .NET 4.0, WPF for UI. Code separation according to MVVM pattern. No external dependencies.
+
+### Screenshot
+![Demo screenshot](https://github.com/apdevelop/composition-rules-helper/blob/master/Docs/ScreenGrid.png)