Add README

Author: SilverGreen93

README.md

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-# SharpPocketToolsGUI
+# SharpPocketToolsGUI
+
+This application helps with converting Sharp Pocket PC BASIC programs from BAS source file to WAV or MP3 or viceversa.
+
+The application is a Graphical User Interface for the PocketTools original command line tools found on http://pocket.free.fr/html/soft/soft_e.html or https://www.peil-partner.de/ifhe.de/sharp/
+
+Using this GUI you can greatly simplify the usage of the conversion tools by just dragging and dropping the required files to be converted. There is also no issue if the file paths use spaces, as in the original scripts on the sites mentioned above.
+
+In addition to this, this release includes the SOX tool (https://sourceforge.net/projects/sox/) to permit conversion to and from MP3 files, so it support direct conversion from and to MP3 as well in addition to WAV.
+Thus, the files can be played and recorded on solid state recorders that do not support WAV file format.
+
+MP3 conversion is enabled by the libmad and libmp3lame from https://app.box.com/s/tzn5ohyh90viedu3u90w2l2pmp2bl41t or https://code.google.com/archive/p/ossbuild/source/default/source
+
+## Usage
+Download the compiled software package from the Releases page, then extract the contents to any location.
+
+Drag and drop the BAS source file to convert to audio file to be loaded on Sharp PC, or the audio file to be converted to the BASIC source file. It supports bulk operation if you drag more than one file at a time. The output file is written in the same directory as the source file.
+
+You can set conversion options directly in the main window.