Update README.md

Author: darwinjob

README.md

@@ -1,2 +1,20 @@
 # ImageMagick-scripts
-Collection of ImageMagick scripts for mass processing of images.
+ImageMagick scripts for converting image folders.
+## System requirements
+The scripts require ImageMagick 7 to be intalled on you Windows machine. Download and install ImageMagick here https://imagemagick.org/script/download.php#windows The version "Win64 static at 16 bits-per-pixel component" is recommended.
+## Check if ImageMagick 7 is installed on your computer
+Run CMD, at the prompt type `magick.exe -version`. You should see the output similar to this one:
+```
+C:\>magick.exe -version
+Version: ImageMagick 7.0.6-0 Q16 x64 2017-06-11 http://www.imagemagick.org
+Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC
+License: http://www.imagemagick.org/script/license.php
+Visual C++: 180040629
+Features: Cipher DPC HDRI
+Delegates (built-in): bzlib cairo flif freetype jng jp2 jpeg lcms lqr openexr pa
+ngocairo png ps rsvg tiff webp xml zlib
+```
+If you don't see the output ImageMagick is not (proprely) installed.
+## Scripts
+In most of the cases the script names are self-explanatory
+## Helper tool