Added name option to pyinstaller

This automatically renames the executable to DoublePDF

Author: nraikm

README.md

@@ -5,6 +5,6 @@ Application that allows you to scan double-sided documents using a single-sided
 Double PDF is compiled using pyinstaller with the onefile and noconsole options.
 
 1. Run the following code in the directory where you downloaded the source code in order to get a executable.
-`pyinstaller --onefile --noconsole --icon DoublePDF.ico main.py`
+`pyinstaller --onefile --noconsole --icon DoublePDF.ico --name DoublePDF  main.py`
 
-2. Open the dist folder and rename the executable to DoublePDF
+2. The dist folder contains the DoublePDF executable.