Update README.md

Author: jshermeyer

README.md

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 # SR_Utils
 Super-Resolution Utilities for managing large satellite images
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+8Bit_Conversion.py - Convert flotaing point or 16 bit imagery to 8 bit.  
+AddGeoReferencing.py - Add georeferencing metadata back to an image where it has been stripped
+tile.py - Code to tile images into smaller sizes for compatible input with deep learning algorithms
+stitch.py - Stitch images back together after super-resolution