Encrypt ReadMe

Source Files
  main.c
    Contains main function that reads in and breaks up the commands.
  util.c
    Contains functions to
      read from the input file
      count the occurrence of each letter in the input file.
      encrypt each character from the input file.
      count the occurrence of each letter in the output buffer.
      write the encrypted characters to an output file.
      initialize all of the resources needed to perform the task.
      free all the resources needed to perform the task.
      print out the counter arrays.