Update the --help\ -h option output

[sophia-gh]

The current output of the command ./nameCollector -h is:

nameCollector: Output all user defined identifier names in a srcML file (i.e., one or more source code files).  
Usage: ./nameCollector [OPTIONS]

Options:
  -h,--help                   Print this help message and exit
  -i,--input TEXT             Name of srcML file of source code with --position option
  -o,--output TEXT            Name of output file
  -f,--format TEXT            The output format (text by default): csv, text
  -a,--append                 Output will be appended to end of file
  -c,--csv                    Output csv with header (same as --format csv)
  -n,--noheader               Do not print header in csv output
  -d,--debug                  Turn on debug mode (off by default)

This output should be updated with more current information such as supported languages and a more detailed description of the tool's functionality.