renders a text file into a book structure and trains a model on it

usage:
       train.sh <text-file> [output-directory] [book-name]

if the output directory is not specified, the current working directory will be used
if the bookname is not specified, the name of the text file will be used

by explicitly using the command line tool ocrogenft more options like dpi,
font type oder the numnber of lines per page are adjustable
afterwards "ocropus trainseg" can be used to train a model on it

for a simple example, just run glass.sh without any arguments

